Distribution & Control

Fuji Electric provides high performance contactors, relays, circuit breakers, and motor starters.

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Primary CategorySecondary CategoryTertiary CategoryProduct Series NameQuestionAnswer
Control EquipmentCommand switchesFlat command boards, flat command switchesAB12 seriesHow can I select a limit resistor to be mounted on the outer side of the LED of the flat command switch AB12-SEL?For example, when rated voltage is DC24V in LED orange, limit resistor is 700Ω2W.
LED forware voltage is 4.1V, forware curre is 30mA.
Resistor is I/V=(24-4.1)/0.03≒ approximately 700Ω
Capacity is I×I×R×3(Safety ratio)≒2W
Control EquipmentCommand switchesRotary switchesAC09, 16, 32 seriesIs a knob available for the code output type rotary switch AC09?The "K-30" of Sato Parts Co., Ltd. or the "BS60" of Tokyo Sokuteikizai Co., Ltd. is recommended.
Control EquipmentCommand switchesRotary switchesAC09, 16, 32 seriesWhat is the grade of the protective structure of the code output type rotary switch AC09, AC16, and AC32 series?The protective structure is IP65.
Packing is inserted in the shaft, and waterproof and oil-proof measures are also taken.
Control EquipmentCommand switchesRotary switchesAC09, 16, 32 seriesIn terms of the code output type rotary switch, what is the difference between the 7-terminal product and the 8-terminal product?Compared with 7-terminal product, 8-terminal product has just one more common terminal.
No difference in characteristics.
Control EquipmentCommand switchesRotary switchesAC09, 16, 32 seriesThe parity bit terminal (P) and the inhibit terminal (INH) of the code output type rotary switch must be connected?Parity bit terminal is a terminal to detect errors in output signal, and inhibit terminal is a terminal to avoid chattering when switching the step. If you have no concern, it is not necessary to connect those terminals.
Control EquipmentSensors, SwitchesProximity switchesAE, PM seriesWhat is the minimum applicable load level of the AES-type magnetic proximity switch?The minimum applicable load level is 12 V DC and 5 mA.
Control EquipmentSensors, SwitchesProximity switchesAE, PM seriesIs a magnet element supplied with AES503L-3T1 when it is purchased?Please place a separate order for a magnet element. (Type AEQ)
Control EquipmentSensors, SwitchesProximity switchesAE, PM seriesDo magnetic proximity switches function with a magnet of another manufacturer?They function with a magnet of another manufacturer, but their operating performance cannot be guaranteed because the detection range changes.
Control EquipmentSensors, SwitchesProximity switchesAE, PM seriesWhen two magnetic proximity switches (PM1U-25BLF2) are placed side by side, do they function with a distance of 200 mm or less between them?When proximity switches are placed with a distance of 200 mm between them, they can operate with little change.
For standard detected objects, a distance down to approximately 100 mm is acceptable.
*For details, please see the catalog.
Control EquipmentSensors, SwitchesProximity switchesAE, PM seriesWhat is the waterproof level of AES502L type?The waterproof level is IP67.
Control EquipmentSensors, SwitchesProximity switchesAE, PM seriesWe use a PM-2S and a PM-2M in combination. Is it OK?There is no problem with using a combination of the PM-2S and the PM-2M.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesIs there any products with ramp voltage AC100V and 200V in AG series?No. Please use the lamp voltage in the catalog.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesDo you manufacture AG series switches of a three-color whole-illuminating type?Yes.
They are maple illuminated pushbutton switches.
All lamps are 24 V DC.
The luminous colors are green, orange and red. (For orange illumination, short-circuit the terminal for red illumination and the terminal for green illumination. In addition, an orange light is produced by mixing red and green light, so that there is a slight difference in hue.)
Types: AG22-LM1E3, AG22-L5M1E3
    AG23-LM1E3, AG23-L5M1E3, etc.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesAre panel plugs for the AG225 available?Yes. The type number nomenclature is "AGX042-H." The color is gray.
However, the cover is a one-touch mounting type, and the degree of protection is IP40.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesCan multiple angle command switches AG23 for longitudinal mounting can be mounted along longitudinal direction?No. The product for longitudinal mounting is to be mounted along longitudinal direction. Mount springs are attached to the product in a vertical direction so that set aside an interval of 6mm or more between the holes of the products. Multiple horizontal mounting is possible.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesFor what purpose are the "barriers" of the AG series used?Barriers are to prevent accidentally operating adjacent switches when they are mounted side by side.
For the AG 23, use "long" barriers when switches are mounted on top of one another, or "short" barriers when they are mounted side by side.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesCan a "barrier" also be mounted on the AG series equipped with a "protective cover"?Yes.
A protective cover is accommodated within the dimension of the "flange" and it can, therefore, be mounted without interference with a "barrier."
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesWhen attaching a "protective cover" to the AG series, does the dimensions of the mounting holes change?The dimensions are the same as those of standard mounting holes.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesWe wish to replace the incandescent lamps of the AG series with LEDs. Which part should be changed?The contact sections can be used as they are.
Replace the illuminating part with an LED unit.
"UP" is marked on the illuminating part. Mount the unit by aligning this mark
with the "UP" mark on the main unit.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesCan multiple AG23 for horizontal mounting (standard product) be rotated by 90 degrees and mounted along longitudinal direction? Multiple AG23 cannot be (contacted and) mounted along longitudinal direction. Corner command is vertically fixed with the mounting springs. If multiple AG23 are mounted in a longitudinal direction, there will be a problem in stability. When mounting along longitudinal direction, create an interval of 6mm or more between the holes.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AG22/23, AG28/DG28 seriesCan the illuminated pushbutton switches and pilot lights of the AG series be mounted and used with upper-tier and lower-tier positions reversed?Yes, they can be used. They can be mounted in reverse, but the positions of the lamp and contact terminals will also be reversed. Connect wires to these terminals with extreme care.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH08, AH10, AH12, AH125, AH105 seriesIs the ramp voltage 200V specification available in AH10 series?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH08, AH10, AH12, AH125, AH105 seriesIs the protective cover for the operation unit available for the push button switch AH10?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesCan color plates for AH164 and AH165 be used for AR16?Color plates for AH164 and AH165 are not compatible with those for AR16 because they are different in terms of the shape of the engagement teeth and the thickness of the edges.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesCan we purchase only the contact block holder for the AH164 and the AH165? (Gray unit apart from the contact block and the dummy unit)We do not supply contact block holders alone.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesCan we purchase LED lamps of the dome pilot light AH165-ZM type?LED lamps of AH165-ZM type cannot be replaced.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs there any emergency stop nameplate (yellow background) for AH165V type?No, there isn't.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesDo you have a terminal cover for AH164 indication lamp?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs AH164-TL (rectangle flat type) equipped with a lock ring (rotation stop)?No. The washer on the AH164 main unit actually stops the rotation.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesDo you have a protective cover with gray frame for "AHX669" and "AHX671"?No. Black only.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs any rectangle protruding lighting push button switch available in AH164,165, and 165-2 series?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs there any tool for removing lamps from AH164-TL type?Use the lamp removal tool "AHX672."
This is an item common to the AH164 series, the AH165 series and the AH165-2 series.
One is for incandescent lamps and neon lamps, and the other is for LED lamps.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesAre the keys for the AH164-J series and the SJ series given a type number nomenclature?Yes.
The type number nomenclature is "AHX662-."
(: Key type, A to F)
Keys are supplied in sets of two.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesAre key type selector switches for the AH164, 165 and AH165-2 types the same?They are different.
For AH164 and AH165: AHX662-
For AH165-2: AR9C022- shared with AR22JR
(Note 1) Designate a key type in . There are six key types, A, B, C, D, E and F.
(Note 2) Keys are supplied in sets of two.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs a protective cover available for the pushbutton switch AH165-2?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesCan we place an order for only the operator of a φ16 command switch?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat are the replacements to AH16, AH160, and AH161?Replacement to AH16 and AH160 is AH164 series (closed type), and the replacement to the AH161 is AH165 series (oil-proof type).
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat is the purpose of the holes on each end of the nameplate for the AH164 and AH165 selector switches?Those holes are to avoid two protruding points in the back of the old model AH16 rectangle type. No impact on the current product because we just continue to use the nameplate for the old type.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs AH165V5 and V1 is certified with TUV?Yes, both of them are certified with EN60947-5-1 as a push button switch.
[Attention] They are not certified as a push button switch for emergency stop.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesIs AH165V5 and V6 is certified with TUV?Yes, both of them are certified with EN60947-5-1 and EN60947-5-5 as a push button switch for emergency stop.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat is the difference between the sockets "AHX697-S" and" AX697-SL" for AH164 type?"AHX697-S" is applicable to non-illuminating switches, and "AHX697-SL" is available for illuminating switches.
"AHX697-SL" is provided with a terminal for lamp terminal insertion.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat is the life expectancy of the 110 V AC neon lamps for AH164-Z type pilot lights?It is approximately 5,000 hours.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat is the difference between the color sheet and the color plate for the lighting push button switch as well as the indication lamp in AH165 lock-compatible terminal series?Color display method are as follows.
Color sheet method:Clear cap+color sheet+diffusion board (opaque)
Color plate method:Clear cap+color plate
LED lamps are partially different, too.
※ Brightness is improved with the color sheet method.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat is the material and flame retardancy of the protective cover "AHX669" and "AHX671"?Material of the base (black) is PBT, and the flame retardancy is UL94V-0.
Material of the cover (translucent) is polycarbonate, and the flame retardancy isUL94V-2.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat is the size of Faston tabs for wires of the AH164 series, the AH165 series and the AH165-2 series?#110.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesWhat are the minimum operational voltage and current levels of the AH164 series, the AH165 series and the AH165-2 series?They are 5 V AC/DC and 1 mA.
[Note] The available range may vary depending on the ambient environment conditions of use and the type of load.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesFor a φ16 illuminating command switch provided with a transformer unit, is it possible to mount the unit facing up?We do not recommend mounting the command switch with the transformer unit facing up.
If the transformer unit faces up, the retaining washer holding the transformer unit may fail to perform its function, and the transformer unit may become unstable due to vibration.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH164.165.165-2 seriesThe buzzer we purchased sounds intermittently. Do you manufacture a buzzer that sounds continuously?Continuous sounding and intermittent sounding can be switched using a jumper.
Buzzers having a "switching function," such as the AH164 type buzzer, are shipped with a jumper for switching attached to the terminal unit section on its back.
The buzzer can be made to sound intermittently by attaching this jumper, or to sound continuously by removing it.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH16P, AH16P-2, AH22P seriesIs any misoperation prevention cover for the push button switch of P-plate?Yes. We do in AH16P series.
Rectangle flat type misoperation prevention cover Model: AHX669-P
Square flat type and round protruding type misoperation prevention cover Model: AHX671-P
When the "gate-shaped support" is used, the misoperation prevention cover cannot be used.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH16P, AH16P-2, AH22P seriesI bought the command switch AH16P-E5RX (operation unit) and AH16P-11 (contact unit) for the P-plate; however, they cannot be combined.For the command switch for P-plate, the operation unit and the contact unit cannot be combined (unified).
Mount the "contact unit" to the print board, and the "operation unit" on the operation panel.
How to mount the "operation unit" to the panel is same as the one for the general command switch. Information on the mounting the "contact unit" to the print board (cautions for soldering) are available in the section of "cautions when using" of the catalog.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH16P, AH16P-2, AH22P seriesWhat is the purpose of "gate-shaped support" for the command switch of P-plate?It is a part to absorb the error in mounting and properly combine the operation unit and the contact unit (including P-plate), when multiple switches are installed on the same panel.
(can be used as a replacement to a spacer.)
Please refer to the catalog "Combination of the operation unit (display unit)/contact unit and the gate-shaped support" for how to use the gate-shaped support.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH25 seriesIs the push lock large type AH25-V with a guard ring available?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH25 seriesCan I purchase only a key for the cylinder key type selector switch AH25-J?Yes. Model number is "AR9C025-".
(:Type of key A-F)
Key is sold in pair.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AH25 seriesIs AH25 series marked with CE?Since there is no product with CE mark in AH25 series. Please select AR22 series.
φ25(φ25.5mm) can be mounted to AR22 series.
Control EquipmentCommand switchesCommand box (control box)AHX9 seriesWith regard to the command box with one hole, what is the difference between AHX921W and AHX929W?AHX921W has a same outer dimension as a box for two-point hole, and has one-point hole.
AHX929W has an exclusive one-point box, and has a one-point hole for mounting.
Control EquipmentCommand switchesCommand box (control box)AHX9 seriesCan I mount the buzzer "DR22B8-MB" to the command box "AHX921W"?Yes.
Protective structure for the "AHX921W" is IP65; however, it is changed to IP54 when DR22B8-MB is mounted.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesWhat is the material of the contacts of HK244XP-2 type?Silver alloy.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesWhat is the withstand voltage level of WK244xP-2 type?The withstand voltage level is 2,500 V AC for one minute (between all live sections and the case). The impulse is not specified.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesDo you have a heatproof version of the limit switch AL-21?No. We do not have a heatproof version of AL-21.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesWhat is the difference between coil spring and spring rod?Materials for the tip part are different. Material for the coil spring is metal, spring rod is plastic (to avoid scratch on the detected body).
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesWhat is the weight of K244XP-2?60g.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesIs the limit switch K244xP-2 a UL-certified product?The limit switch is not granted UL certification.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesDo you manufacture explosion-proof type limit switches?We do not manufacture explosion-proof type limit switches.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesWhat is the waterproof level of K244GW type(water-tight type)?K244GW is a product developed before the establishment of IP standards. It is equivalent to the IP63 level specified in the current IP standards.
Control EquipmentSensors, SwitchesLimit switchesAL, K244 seriesIs any of the limit switches of K244x type available for 600 V AC?No limit switches are available for 600 V AC. The limit switches of K244x type are applicable to up to 550 V AC.
Control EquipmentCommand switchesMulti-display lightsAP30F seriesAre the model series same for the multi display light AP30C and AP30F?AP30C is changed to AP30F. There is no other change.
However, for LED AC100〜110V(H3),115〜127V(L3), 200〜220V(M3), AP30C is with transformer , and AP30F is without transformer.
Control EquipmentCommand switchesMulti-display lightsAP30F seriesWhat do "R voltage division system" and "CR voltage division system" relating to LED lamps of Fuji Electric’s multi display lights (F series) mean?R voltage division system: Reduces the voltage by means of a "resistor."
CR voltage division system: Reduces the voltage by means of a "capacitor and a resistor."
Since the lights of both systems do not use any transducer to reduce the voltage, the depth is short like the full voltage types. (100 V lights, 200 V lights)
Depth of conventional lights: 89 mm
Depth of the F series: 61 mm (approx. 2/3)
Control EquipmentCommand switchesMulti-display lightsAP30F seriesWhat are the features of Fuji Electric’s multi display lights (F series)?The main features are shown blow.
The lights are very bright and vivid.
The lights require less energy than conventional products (AP30C, AP40C).
The depth of the lights of up to 200 V is short like the full voltage types, and the weight is reduced.
  (R voltage division system, CR voltage division system)
Each unit can be individually replaced because no transformer is used.
 (No problem will arise even if units operating with different voltages are used.)
Square-shaped "half-size" (15 x 30, 20 x 40) types are available.
The lights are supplied with a live-section cover as a standard item.
Control EquipmentCommand switchesMulti-display lightsAP30F seriesAre the nameplates same for the multi display light AP30C and AP30F?Same.
Model number for the square nameplate is APCX012-LW.
Model number for the rectangle nameplate is APCX014-LWです。
Control EquipmentCommand switchesMulti-display lightsAP30F seriesHow can we place an order for AP30F multi display lights operating with 24 V AC/DC and 110 V AC?(a) Designate "X" for the voltage code.
(b) State the arrangement of the voltage types on the order sheet or drawing, and attach it when placing an order.
Control EquipmentCommand switchesMulti-display lightsAP30F seriesAre the panel cut dimensions same for the multi display light AP30C and AP30F?Same up till row 10.
After row 11, add 1mm toward AP30C (add 1mm along horizontal direction).
Control EquipmentCommand switchesMulti-display lightsAP30F seriesWhat is the degree of protection of AP30F and AP40F multi display lights?The degree of protection of both models is IP40 (standard enclosed type). : Indicator
Control EquipmentCommand switchesMulti-display lightsAP30F seriesIn order to print on the nameplate, which side should I use? The rough side (embossed) or the smooth side?Smooth side.
Control EquipmentCommand switchesMulti-display lightsAP30F seriesCan incandescent lamps of AP30F and AP40F multi display lights be replaced with LED units?No, they cannot be replaced. LED lamps and incandescent lamps consist of different component parts.
Control EquipmentCommand switchesMulti-display lightsAP40F seriesWhat is the model number for the LED unit of the multi display light "AP40F-0103H3-S-G(1), O(1), and R(1)"?"DN8Q001-S1H"
(Specify color for . Green:G,orange:A,red:R )
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR16 minico seriesAre φ16 contact-integral types (minico) supplied with a live-section cover as a standard item?They are not supplied with a live-section cover. Live-section covers (AR6Y291) are available as options. Please place a separate order for them.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR16 minico seriesCan I use the nameplate AH664 of AH164 and AH165 for the push button switch and the selector switch of AR16?Yes. Waterproof capability is enhanced by adding a packing (AHX685) between the panel and the nameplate.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR16 minico seriesCan contacts be added to the AR16 series and the AF16 series?Since command switches are integral with contacts, they cannot be replaced or added.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR16 minico seriesIs the protective cover for the AF16 (for thin type) colored?The protective covers AF6D826- and AF6D827- for the AF16 are provided with a color plate. The covers are clear but mounted with the color plate removed from the bodies. Thus, it is necessary to designate the color of the color plate.
(Within : color code)
However, when the color of the switch body is W (opaque white), P (pure white), or B (black), designate clear (: "C") for the color of the color plate.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR16 minico seriesCan you manufacture φ16 command switches (including minico) treated for use in tropical regions [Z9]?We do not supply φ16 command switches treated for use in tropical regions.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesError alarm is trigger on the buzzers DR22B5-EB and DR30B5-EB (used with DC24V)by leaked current (0.25mA) from the sequencer. Any countermeasures?Connect the external resistor in parallel between the terminals.
For resistor, please select 200kΩ0.5W when the leakage current is 0.1mA, and 18kΩ0.5W when the leakage current is 0.25mA.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the replacement to the old model push button switch AHC?φ25 series AH25 or AR22.
φ25 mounting is possible with AR22.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesIs there any replacement in AR series to the two-latch type push button switch in AH series?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhy there is no AR 25 in AR series?With IEC947−5−1(Electric machine control device), the standard dimension of the mounting hole is φ12,16,22,and 30.
There is no "AR25" because the mounting hole φ25 is out of IEC standard; however, AR22 is compatible with φ25 panel cut.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesThe button is not easy to operate with the push button switch for emergency stop in AR series.Operation load is heavier due to the "trigger action mechanism" employed.
Light load type is also available. Please select standard type or light load type according to your needs.
<Operation load>
Standard type (AR22V2R/AR30V2R):45N
Light load type (AR22V0R/AR30V0R):25N
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the difference between the indication lamp DR22F3M (flat type) and DR22F4M (flat type/clear lense type)?Lease is clear for F4M, and combined parts in the indication display are different from 3M.
F3M…Colored clear gloves+two pieces of opaque plates (One of the a nameplate. 1)
F4M…Clear globe+color plate+nameplate(opaque)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesIs 1a2b contract point possible with the lighting push button switch for emergency stop AR22V2L full voltage type?Yes. It is possible with up to three contact points.
Configuration of contract point that we can make is 1a,2b,1a1b,2a1b,1a2b,and 3b.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat type of keys are there with AR22JR and JAR key type selector switches?For AR22JR: AR9C022-
For AR22JAR: AR9C025-
(Note 1) Designate a key type in . There are six key types, A, B, C, D, E and F.
(Note 2) Keys are supplied in sets of two.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre AR22F0R type pushbutton switches supplied with green, red and black buttons available?Yes.
Designate a button color code with "T" at the end.
Example: AR22FOR-11T
Only the types F0R and F5R are available in this pattern.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesDo you have a volume-adjustable buzzer in φ30?No.
DR22B3 is available for φ22 type.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesCan AR22E0L be replaced with a fully covered lighting push button switch?No. For AR22, the cover for the operation unit is integrated. Guard ring only is not available, too.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesDo you have a three-notch automatic recovery product for the lighting selector switch AR22PL and AR30PL?We can make full voltage type only with special specification. The contact point configuration convers up to three contact point. (We cannot make the one with a transformer.
Model: Example AR22PL-111E3R
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesIs there any short body type transformer unit with an operating lamp voltage higher than 220 V AC?No. Short body types are available with only 110 V AC, 127 V AC, and 220 V AC.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesDo you have any protective covers for the selector switches?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesDo you have a DC200V version for the LED indication lamp in DR22 series?No.
DC110V version is available. Please use it after reducing the voltage to DC110V.
DR30 series has the indication light with resistor DC220V.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesRegarding the lighting push button switch for emergency stop, do you have a kind of switch that is lit up when it is pushed?Yes. Contact point integrated type AR22VGF.
(LED:AC/DC24V, Neon:AC110V, 120V, 220V, 240V)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesDo you manufacture φ22 and φ30 command switches with a metallic nut?We supply command switches with a metallic ring as special items.
φ22: AM/DM22 type (except for AM22M3R, M8R, G4L, G9L and V types)
φ30: AR/DR30 type (except for AR30G4L, G9L, GSR, GPR, B0R, HR and DR30B8 types)
Designate a type number nomenclature with "ZM" at the end.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre emergency stop nameplates bearing the words "EMERGENCY OFF" available?The nameplate "AR9P719-5C" for φ22 and the nameplate "AHX720-5C" for φ30 are available.
However, the height of the characters is 13 mm although the standard height of characters is 7 mm.
The nameplate "AR9P721-5C" to be used with the SEMI standard-compliant guard ring "AR9R008" is also available.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the model number for the LED unit of the indication lamp DR22E3N-E9?"APX510-24".
Specify the symbol for the light emission color in the .
Symbol Green:G,Red:R,Orange:O,Yellow:Y,Amber:A,Blue:S
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesIs there a model number for a clear guard ring for AR22G4L?No. (The clear guard ring cannot be purchased alone)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesIs there any way to control ten key switches with ten different keys?With AR series, differentiation is possible for up to 12 types. Each model type of the two corresponds to six types. (Appearance of the main unit remains unchanged)
AR22JR and AR30JR
…6 types (key type:A, B, C, D, E and F)
AR22JARand AR30JAR
…6 types (key type:A, B,C,D,E,and F)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre command switches with finger protection IP2X available?Yes. These command switches are included in the AR series, the DR series, the AM series and the DM series as special products.
(a) When placing an order, designate a standard type number nomenclature with "ZB" at the end.
Example: AR22E0R-11GZB, DR30D0L-H3WZB
(b) The available types are listed below.
AR22 (except for multi-directional switches)
DR22 (except for short body type, buzzers and numerical indicators)
AR30 (except for key JER type with solenoid, multi-directional switches)
DR30 round frame switch (except for short body type, buzzers and numerical indicators)
(c) Round type crimp terminals cannot be used.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesCan you make a DC 100V LED lighting for the indication lamp DR22D0L?Yes.
Model number is "DR22D0L-H7"
"H7" means that being equipped with DC100-110V resistor unit.
Specify for the globe color.
[Attention] Not certified with the standards overseas
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre the buttons for AR22F0R and AR30F0R push button switch same?Yes.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre the contact point operation different between the AR22PR-322B (manual recovery) and AR22PR-122B (automatic recovery) of the three-notch selector switch?Yes.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesThe degree of protection of DR22B8 type and DR30B8 type buzzers is IP54 (dust-proof type, splash-proof type). Are they also protected from oil?They cannot be protected from oil.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre the specifications for the short barrel type transformer unit and the standard transformer unit in DR series the same?Except for the outer dimension, the specification are the same.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the life expectancy of the LED lamps of the AR series and the DR series?The life expectancy of the LED lamps is approximately 30,000 hours when they are used at the rated voltage. (Ambient temperature: 25℃, average value of all colors [reference value])
The judgment criterion for life expectancy is based on 50% of initial luminosity.
The life expectancy of lamps is affected by temperature, humidity and voltage fluctuations.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the life expectancy of the incandescent lamps of the AR series and the DR series ?The life expectancy of the incandescent lamps is approximately 5,000 hours when they are used at the operational voltage of the incandescent lamps of the main unit.
(The voltage is set at 80 to 90% of the rated voltage of the lamps.)
When the bulb is burned out, the lamp is considered to have reached the end of its life. (In the case of lamps used with alternating current)
In addition, we recommend using LED lamps in case of DC operation because the life expectancy of incandescent lamps will be considerably shortened by direct currents.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesDo you have key-type selector switch AA22JR (two-notch, manual recover) with direct open-circuit operation function (with forced opening function)?Standard product is compatible if it is with b-contact point.
In AR series, b-contact point (AR9B291) is equipped with the direct opening operation function (with forced opening function).
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesHow much is the operation load of the push button switch (including lighting) for emergency stop?AR22V2 and AR30V2: approximately 45N(maximum value)
Light load type
AR22V0, AR30V0 and AR22VS: approximately 30N(maximum value)
[Attention 1] The value is the for configuration of the contact point is 1a1b.
[Attention 2] For light load type, a white allow mark is on the operation unit (button).
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat levels of protective structure do the operation unit and the display unit in AR22/DR22 series have?Lighting push button switch, push button switch, push button switch for emergency stop, lighting push button switch for emergency stop, selector switch, lighting selector switch, multi-directional switch, indication lamp, number indicator, operation unit, protective structure to protect display unit: IP65(Dust-proof/jet-proof type)
Buzzer
 DR22B5 and DR22B3
 Protective structure for surface unit: IP00(Open type)
 DR22B8
 Protective structure for surface unit: IP54(Dust-proof/splash prevention type)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat are the minimum operational voltage and current levels of the AR series and the DR series?They are 5 V AC/DC and 5 mA.
[Note] The available range may vary depending on the ambient environment conditions of use and the type of load.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the material of the φ22 water-proof cap (AR9D797-)?Silicon rubber.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is a "splash-proof buzzer" like?A splash-proof buzzer has a degree of protection of IP54 (standard type: IP40) and complies with EN60204-1.
The sound level is slightly lower because of the product’s structure for maintaining airtightness.
[Standard type: 90 dB (0.1 m), splash-proof type: 80 dB (0.1 m)]
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesAre buzzers bearing the CE marking available?Yes.
The "splash-proof buzzers (degree of protection: IP54)" AH165-XB type (for φ16), DR22B8 type (for φ22), and DR30B8 type (for φ30) comply with the EN60204-1 standard and bear the CE marking on the nameplate on the main unit.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesHow can I light up the lighting push button switch for emergency stop AR22V2L when it is pushed down?Pushing operation of the push button and the lighting of the lamp is not interlocked.
Connect a lamp terminal with the a-contact point for the switch to energize the lamp terminal when the push button is pushed down.
(Ideally, add "1a contact point" to the switch's main unit.)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesPlease tell us the LED lamp terminal numbers of the illuminated pushbutton switches of the AR22 series and the polarity of the wires.The LED lamp terminal numbers are X1 and X2.
In addition, except for the 6 V DC lamp, the LED lamps do not have polarity because they contain a rectifier circuit.
Connect the positive pole of the 6 V DC lamp to lamp terminal X1 and the negative pole to lamp terminal X2.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesIn which position can the key for the large key-release push-lock AR22V7R be pulled out?The key can be pulled out in the central position.
To reset the push-lock, turn the key clockwise. It will return to the central position after resetting.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWith DR22 and DR30 buzzers, can the full voltage type be replaced with the transformer type?No. Terminal layout are different for the full voltage type and the transformer type.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the limit ambient temperature at which the illuminated pushbutton switches of the AR series can be used?Fuji Electric FE’s illuminated command switches (including command switches treated for use in tropical regions and for use in cold regions) can be used at an operational ambient temperature of up to +50℃.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesCan I flicker the indication lamp in DR series?The unit to flicker lamp (flicker unit) is available; however, a command switch that integrates main unit with the flicker unit is not available. It the indication lamp is equipped with the transformer, it is possible to integrate the main unit with the flicker unit in stead of the transformer.
In case of full voltage, separate installation is required. Combine the "transformer separately installed base" and the "flicker unit" with the main unit.

In either case, please select the flicker unit that meets the rated voltage of LED lamp on the main unit.
<Types of flicker unit>
<For AR22 and 30>
AC6V   ; AR9T002−A
DC6V   ; AR9T002−6
AC12-24V ; AR9T002−G
DC12-24V ;  AR9T002−E
※Compatible with our LED lamp APX507,508,509,and 510 (one lamp per unit)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR22 seriesWhat is the tightening torque level of the terminal screws (M3.5) of the AR series and DR series?Tighten the terminal screws to 0.8 to 1.0 Nm.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the replacement to the old model push button switch AHE?φ30 series AR30
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesAre square pilot lamps of the DR series that can be collectively mounted available?The DR30F4M (flat type, 34 x 34), DR30F4N (flat type, 34 x 40) and DR30M4M (flat large type, 40 x 40) pilot lamps can be collectively mounted.
(They can be mounted at the same pitches as the dimensions of the indicators.)
Since these lamps are mounted in round holes and oil-tight types with IP65, they are also effective in a location where oil tightness performance is required.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesDo you have any waterproof cap for AR30?Yes. "AHX052" is available.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs a plastic panel plug available for the AR30 and DR30 series?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there class 2 heatproof products in AR series?Yes.
"Z0" is added to the end of the model number. Example:AR22Z0
Target models:Push button switch
        AR22F0RE0RM0R
        AR30F0RE0RM0R
      Selector switch
        AR22PRWRJR
        AR30PRWRJR
[Attention 1] 3-notch automatic recovery selector switches are excluded.
[Attention 2] The maximum contact point for the configuration is 4 points.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there any model that is activated when the 30φ command switch is pressed, deactivated when it is released, and locked when it is held down and turned clockwise?AR30N0R (turn lock type).
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the model number for the built-in incandescent lamp of the indication lamp with transformer DR30D0L-H4W?AHX135.
Lamp rated is 6.3V1W.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesDo you have a protective cover for φ30?Yes. The clear cover with chain is attached to/detached from the tightening ring on the operation unit. Model number os "AR9E538"
Applicable models:AR30F0R ,F5R, E0R, E5R, E0L, and E5L
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there any replacement in AR series to the key-attached push lock middle size AH22-VSJ?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there any replacement in AR series to the L-ring large push button switch AH30-M?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs a nameplate for emergency stop available for the emergency stop pushbutton switch AR30V1R (φ65)?No, it is not available.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesAre live-section covers for AR30 multi-directional switches (screw terminals) available?No, they aren't.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesDo you have AR30 push button switch with metal contact points?Gold plating (material is pure silver)version is available. Specify "ZE" at the end of the model number (We will discontinue the specification code "Z037".)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the model number of the contact point unit for the screw terminal type multidirectional switch AR30AN?"AHX930-".
(:Contact point configuration 1a:10,1b:01,1a1b:11,2a:20,2b:02)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the model number for the built-in LED for the indication lamp with transformer DR30F4N-H5G?DN6Q005-2G.
The LED lamp exclusive for transformer, AC12V.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there a φ30 hole for mounting on the SEMI compliant guard ring?No.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there any replacement in AR series to the key-attached large push lock AH30-V5? No.
φ30.5mm mounting hole can be dealt with the combination of the push lock large with φ22 key AR22V7R and the round frame adapter for mounting φ30 AR9Y004
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the difference between AH series and AR series?AR series two models, AR22(φ22/25) and AR30(φ40
The features of AR series
  Shallower depth
  More reasonable than AH series
  Standard products are certified with overseas standard
  Areas occupied by the transformer is smaller. (Downsized by 25% from AH series).。
[AH22 and AR22]
  Panel mounting method is different.
  AH22Panel front surface (button or knob needs to be attached later)
  AR22To be mounted on the back of the panel (button or knob are attached to the operation unit mounted on the panel.)
[AH30 and AR30]
  Material of the tightening rings are different.
  AH30Metal ring
  AR30Resin (black)ring. (For metal ring, please specify.)
      (Panel is mounted to on the front for AH30 and AR30)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the model number for the control selector switch in AR30 series whose three-notch manual recovery allows each notch to have a corresponding contact point?We would like to introduce some models out of many.
AR30PCR-3044B(Upper b-contact point is not wired.)
AR30PCR-3094B(    "     )
AR30PCR-314DB(Upper a-contact point is not wired.)
AR30PCR-315AB(    "     )
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesAre there model numbers for the button of the push button switch for emergency stop AR30V2R?Two parts: central globe AR9C020-R,button AR9C017-R.
Only red is available.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the replacement to RCa470-B1B?Super large push button switch "AR30B0R-11B".
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the replacement to RCa470-V1R?Push lock super large type "AR30V1R-11R".
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs there any replacement to the push lock large lighting push button switch AH30-VEL1(full colored clear, shorter depth dimension)?The lighting push button switch for emergency stop AR30VDL(light load type, built-in trigger action mechanism)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the voltage for the secondary side voltage of the transformer unit "AHX503-"?Voltage at the secondary side is approximately AC15V.
[Attention] The value is for when the lamp is attached.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesAre the depths of the momentary and alternate actions of pushbutton switches of the AR30 series the same?The dimensions are the same.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesHow many holes for inserting the pins are there of AR30GPR type pin lock type pushbutton switches?Two holes are provided in the button section.
The pins can be locked with the buttons pressed or unpressed.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesCan I replace DC110V for the buzzer DR30B8 with the AC110V and the DC110V's transformer?No. Each main unit is exclusive.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesThe degree of protection of the operator of AR30JR type key type selector switches is IP65, but doesn’t water penetrate through the gaps of the keys and into the unit (back face side of the panel)?The inside of the gaps of the keys is sealed. Thus, water will not penetrate into the unit (back face side of the panel) through the operator.
The degree of protection against water is a jet-proof type.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesDR30D0L does not have a packing between the globe and the main unit while the old model indication lamp AH30-ZM does. Is the protective structure compliant with IP65?No.
DR30D0L has a packing-free structure and its protective structure of the display unit meets IP65.
Please refer to the users' manual to ensure the globe is mounted.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat are the levels of protective structure for the operation unit and display unit in AR30/DR30 series?Lighting push button switch (excluding AR30Q7L),push button switch, push down switch for emergency stop, lighting push button switch for emergency stop, selector switch, lighting selector switch, multi-directional switch, indication light (excluding DR30D1L), number display device
 Protective structure of the operation unit and display unit:IP65(dust-proof/jet-proof type)
 ※ AR30Q7L and DR30D1L are IP40(closed type).
Buzzer
 DR30B5, DR30B6, DR30B0
 Protective structure of the surface unit: IP00(open type)
 DR30B8
 Protective structure of the surface unit: IP54(dust-proof/splash prevention)
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat material is used for the φ30 dust-proof cap (oil-tight type)?Nitrile rubber.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesWhat is the "control type" select switch? How is it different from the standard type?In general, three-notch standard time has an "off" position in the center while the control type is varied in terms of the types of contact operation and each notch can be electrically conducted. There are four-notch and five-notch for control type; however, only two models, AR30PCR−441CB and AR30PCR−551CBare in the catalog. If you need other contact point operation with four-notch and five-notch, considering of cam switches is also a good idea.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesIs the key-type selector switch AH30-J compatible with AR30JR?No. However, key long product type AR30JAR is compatible.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)AR/DR30 seriesHow can I mount the panel of the square frame indication lamp DR30F4M, F4N and M4M?Square frame indication lamp DR30F4M, F4N and M4M are the rear-fastening to the panel. Thus, please use the fastening wrench "AHX536" to tighten.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat are the features of AS-i?The features are as follows.
Substantially saving wire between controllers and sensors
Power supply using signal lines
Easy and quick installation and change
High speed response
Outstanding openness
Scalability of the capability specification
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs there any association or organization?AS-International Association (headquartered in Germany)
AS-i Japan was launched in 2001.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan you give me some names of manufacturers as a member of AS-International Association?The leading control device manufacturers across the world are the members.
Siemens, Allen Bradley, Schneider Group, GE, FANAC, and etc.
From Japan, Mitsubishi Electric,IDEC, JTEKT, CKD, SMC, Fuji Electric FA Components & Systems, and etc. are the members.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan AS-i be used overseas?Yes. The AS-i is an open netwotk standardized with IEC62026-2.
It falls into a category of the wire saving level, a network layer. The AS-I accounts for approximately 100% of the market share in Europe, and approximately 30% in the U.S.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is "AS-Interface Safety at work" like?It has features as follows.
1. It is a safety system compliant with EN954-1 category 4 and IEC61508 sil3.
It can be realized by connecting a safety slave and a safety monitor with the standard AS-i system.
2. A The system configuration cost is more reasonable than the other safety systems.
3. B The operation time from the detection of the failure to the operation is shorter.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs the AS-i's automatic address setting function interlocked with the ladder's signal?It is irrelevant to the PLC's sequence.
What a registered slave is missing an address, AS-i's automatic address setting function automatically sets an address when the slave's I/O configuration and ID codes of the slaves mounted afterwards are confirmed and matched with the ones for the slave that is missing the address. The status information can also be process with sequence because the lack of the slave and new addition of the slave are notified as the status information of the master unit for AS-i.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDoes the "transmission distance 100m" means the distance between the master and slave?No. The distance to the AS-i power source needs to be taken into account.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is PNP input like?It is an input that acts when current inflows as the input signal. Under the PLC standard, it is called as a sinking input. Before the terminology was standardized, sometimes it was called as sourcing input because it is connected with sourcing input, or as negative common based on the common potential. In terms of the AS-i, it is called as PNP input because it is connected with PNP input. In the West, this is the common input specification.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is PNP output like?It is an output that acts when current outflows as the output signal. Under the PLC standard, it is called as a sourcing output. Before the terminology was standardized, sometimes it was called as positive common. In terms of the AS-i, it is called as PNP output that uses output element equivalent to PNP transistor. In the West, this is the common output specification.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is NPN input like?It is an input that acts when current outflows as the input signal. Under the PLC standard, it is called as a sourcing input. Before the terminology was standardized, sometimes it was called as sinking input because it is connected with sinking output, or as positive common based on the common potential. In terms of the AS-i, it is called as NPN output that is connected with NPN output. In Japan, this is the common input specification.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is NPN output?It is an output that acts when current inflows as the output signal. Under the PLC standard, it is called as a sinking output. Before the terminology was standardized, sometimes it was call as negative common based on the common potential. In terms of the AS-i, it is called as NPN output that uses output element equivalent to NPN transistor. In Japan, this is the common input specification.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesThe address setting device (FL1HA-E) is equipped with parameter writing function. Can I use it to switch the range for an analog slave?No. This function is to text the slave's parameter function, not to write the parameter into EEPROM including the master unit.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan I use it in an explosion-proof area?No.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs there any restriction in wiring length based on the power supply (number of connected devices, voltage drop restriction)?Total length is 100m. It can be extended by using a repeater. The maximum length is 300m (with two repeaters). The maximum number of slaves to be connected is 62 (A/B slaves are used). The cross section area of the AS-i cable is 1.5mm2.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if the AS-i transmission cable (yellow) is short-circuited?No negative impact on the master, the gateway, and the slave, as the control circuit of the AS-i voltage is activated and the output voltage is lowered.
For abnormality display, red light is on at the "APF" LED of the master.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if the AS-i auxiliary power supply cable (black) is short-circuited?No negative impact on the slave, the master, and the gateway.
The "EXT POWER" LED of the slave will be off.
Use an appropriate control circuit protection device.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if the AS-i transmission cable is disconnected?Communication with the slaves located at the disconnected point or beyond is disabled.
For abnormality display, the red light is on at the "CER" LED of the master unit.
For abnormality display, the address numbers of the slaves located at the disconnected point or beyond are displayed.
If the numbers are many, press the "DISP" button to display them in a ascending order.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if the AS-i auxiliary power supply cable is disconnected?For abnormality display, the "EXT POWER" LED of the slave is off (normally the green light is on).
With analog slave, "AUX POWER" LED is off and the peripheral fault message is displayed on the master unit.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if the AS-i auxiliary power supply cable is installed at the position designated for the AS-i transmission cable?Cannot communicate.
For abnormality display, the red light is on the "AS-i" LED of the slave.
No damage to the slave.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if the AS-i transmission cable is installed at the position designated for the AS-i auxiliary power supply cable?Cannot communicate.
No damage to the slave.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if polarity of the AS-i transmission cable is reversely connected?The reverse connection prevention circuit in the slave will be activated. No damage to the slave, the master, and the gateway.
For abnormality display, slave's "AS-i" LED is off (normally the green light is on).
If the configuration is registered, the address number of the slave will be displayed on the master for abnormality display.
To avoid reverse installation, the cross-section for the AS-i communication cable is asymmetrical.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if polarity of the AS-i auxiliary power supply cable is reversely connected?A short-circuit will occur inside the slave and the slave will be damaged.
Please add an appropriate breaker for control circuit to the circuit of the AS-i auxiliary power supply cable without fail.
For abnormality display, "AS-i" "EXT POWER" and "AUX POWER" LED of the slave are off (green light is on for normal operation).
To avoid reverse wiring, the cross-section of the AS-i auxiliary power supply cable is asymmetry.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs AS-i standardized?Yes.
Compliant with IEC62026-2 and EN50295.
Compliant with GB/T 18858.2 China National Standards.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs AS-i CE mark compliant?Compliant with the EMC direct.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesAre these UL standard compliant?Applicable AS-i devices are the AS-i power source and the AS-i cable alone. Both of them are certified.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesA various type of connection method is possible. Is the cycle time varied based on the connection methods?No.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesAfter mounting a slave without address settings, can I use the master to set an address to each slave?No. Only a slave with address 0 can be set with the automatic address setting function.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan I change addresses without using addressing setting device?Yes. The addresses already set can be changed. As some points are different according to master units, please refer to each users' manual.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs there any restriction in mounting direction of FP1AA-JNW072 for the AS-i power source?Yes, it can be mounted on the front only.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhen the power source capacity is short, can I connect the AS-i power source in parallel and use it?No. Please separate the segments or replace it the power supply with higher capacity.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan general-purpose power supply can be used as the AS-i power source?No. The AS-i transmit a signal after superimposing by the power source.
Since the general purpose power supply is not equipped with the mechanism to superimpose signal (decoupling circuit), the signals cannot be transmitted.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is the dimension of a rod terminal that fits in a terminal board of the AS-i power source (FP1AA-JNW072)?φ1.8mm or less is applicable.
Our users manual mentions the applicable wire dimension (up to 2.5mm2).
Converting it in terms of a single wire, it is approximately φ1.8mm.
The dimension of the frontage of the terminal board is approximately 2.5mm.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is the current leakage of AS-i power source 3RX9307-1AA00 (manufactured by Siemens) ?0.43mA (Typ.) AC100V 50Hz without load
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is the current leakage of AS-i power source 6EP1354-1AL01 (manufactured by Siemens) ?1.6mA (Typ.) AC100V 50Hz without load
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs the cable sold only by 100m?Yes. The cables we sell is 100m/roll. In general, the transmission distance is 100m in total. By using a roll, the cable is installed without exceeding the restriction in cable length.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhen a slave is removed, do I need to take care of a hole left on the AS-i cable?No. Insulation capability would not be changed even if the slave is removed.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesNo terminal resistor is needed?No.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan I use generic cables?Yes. We recommend to use 0.75mm2 or over for the AS-i specification
In some cases, the transmission distance may be shorter (100m or less) according to the cable's characteristics.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDo I need to cover AS-i cables with a conduit or duct for insulation protection?The insulation breakdown voltage for the coating of the AS-i cable 1500V. Not necessary for low voltage circuit.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesAre they shield-processed?No. Please use the AS-i cable or the parallel two-core cable.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is the minimum bending radius of AS-i cables?12mm for the fixed device and 24mm, 30,000 times for the mobile device.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs there no switch for address settings?No. Please use the address setter (FL1H-E and FL1HA-E, etc.) to set the address.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesMaximum number of input and output point for a standard slave should be 124, not 248?Up to 248 points. When the 4I/4O slave is use, it is 248 in maximum.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is the allowable current capacity of the connector part for power lines of the box-type slave?The current capacity of the connector unit is 10A.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhen a slave is replaced with a new slave not for malfunction, does the automatic address settings function? Yes. The automatic addressing setting function sets the missing address out of the addresses of the slaves recognized by the master when a slave is missed and a new slave with 0 address is added.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhen the slave with assigned address is replaced with a slave, does the automatic address settings function? No, it cannot be used as it is. Only the slave with 0 address (all the new slaves are set at 0 address) can be used for the automatic address assignment.
It is necessary to set the address at 0 or other address you want using the address setter.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs the power source for controlling slaves only one supply from the AS-i power source? No power supply for sensors?Power source for the sensor is supplied from the AS-i power source through the AS-i slave.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan I use V2.0 slave as a replacement when V2.1slave is short?Yes. With the master compatible with AS-i specification V2.1, A/B slave (V2.1) and
the standard slave (V2.0) can be used together.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDo I need to use an address starting from 1?No.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDo I need to arrange an address starting from 1?No.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if an output terminal of the slave (between 1-3) is short-circuited (a power supply line of a sensor, etc. is short-circuited) ?The short-circuit prevention circuit in the slave protects the sensor and the slave from damage.
To display abnormality, "AS-i" LED on the slave is flickered in red.
To display abnormality, the master displays the address number and turns "CER" display on.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat will happen if an output terminal of the slave (between 1-4 in NPN, 3-4 in PNP) is short-circuited? IP 67 slave protects itself from damage by activating the short-circuit prevention circuit in the slave.
Since IP 40 slave is not equipped with built-in short-circuit prevention circuit, it will be damaged.
Abnormality is not displayed on the LED.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIt is said that no slave station can be attached between the AS-i master and any extender, however, it is working after the slave was connected. Is there any problem?It appears to be working; however, it is not in a stable condition.
It is easily influenced by external disturbance and the operation cannot be guaranteed. Please revise the system including replacing with the repeater and the power supply.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is the pin layout of the conversion cable for address setting?No. 1 pin on M12 plug is connected with the outer side of the jack
No. 3 pin on M12 plug is connected with the inner side of the jack
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesI am going to use a PLC and a gateway in a waterproof board. Do you have waterproof parts for AS-i cables to be used at the outlet of the board?Yes. The rubber packings (model number: 3RK9805-0AA00 or FX9P011) are available. There are sealing rubber packing when Pg11 waterproof connector is used. These cylinder shaped rubber packings have a hole in a trapeze shape that corresponds to the cross-section of the AS-i cable.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs there any special restriction in separation from a power line?There is no special restriction compared to the other network. Separate power system from control system.
We recommend to set an interval of 100mm or over.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDo I need to store AS-i devices in a box for protection (mechanically, environmentally) ?It depends on the device as follows.
Since the protective structure for the AS-i master and the AS-i power supply is IP20, they need to be stored and used in a box.
IP67 slave is dustproof/waterproof. IP40 slave is dustproof. Although it depends on the surrounding environment, in general, they can be used without a box.
IP 67 slave is also tough to the cutting fluid.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDoes any exposed wiring matter? Is the wiring should be protected by a conduit, duct or rack?It is needed when the mechanical damage is predicted; however, in general, special protection is unnecessary.
There are two types of AS-i cables? For general purpose and the oilproof/heatproof. Please select according to the environment the cable is used.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDoes any wiring twist (a twist in the middle of the wiring, a twist close to the point where the wiring is connected with the device, etc.) matter?There is no functional loss due to twisting. Still, connect the cable with the slave properly.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesHow can I fix AS-I cable?Please use a banding band to fix.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIs insulating of the terminal position of the AS-i cable necessary?Please attach the cable end piece (3RK1901-1MN00) to the terminal position of the cable for protection from water.
For IP67 products, attach the terminal position of the table inside the slave using an attached rubber packing for protection from dust.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIn terms of FM6D1-40XXN, is it necessary to supply external power to the power supply pins on the output connector?No. Power is supplied from the slave side through the communication cable.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIn terms of FM6D1-04TNX,is it necessary to supply external power to the power supply pins on the output connector?No. Power is supplied from the slave side through the auxiliary power cable.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhen adding a slave, is there anything I need to be specially careful for?No. Set and add an unused address between 1-31, 1A-31A, or 1B-31B. Make sure that the power is off before setting and adding an address.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhat is address 0?It is an initial value at shipment. When the slave is broken, the address automatically set as the one used by the broken slave by replacing it with a slave with address 0. You cannot assign address 0 during address assignment.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriescan I keep the connectors as they are, if I am not using them for FM6D1 type (waterproofing connector type slim slave)?Please attach the waterproof cap (3RK1901-1KA00 or FX9C021).
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesHow can I connect a FM6D2 (M8) with an AS-I cable?Please use a branch connector and a relay cable.
Branch connector: 0911ANC101 (Lumberg)
Relay cable: SAC-4P-M12MS/1.5-PUR/M12FS (Phoenix Contact) or equivalent.
For the input slave,
Branch connector: 3RX9801-0AA00 (available through us) or equivalent is also usable.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesHow can I connect a FM6D2 (M8) with an address setter (FL1H-E)?Please use a relay cable.
Relay cable: SAC-4P-M12MS/1.5-PUR/M12FS (Phoenix Contact) or equivalent
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesDo I have to ground the slave?No.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesI have been using it for about five years. Recently, it started to happen a configuration abnormality instantaneously a couple of times per hour. What is the cause?Do you see any mobile part? This happens when the coating on the sensor's wire connected to the slave is broken, or the coating on the AS-i's cable is broken and ground faults happens during operation.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesCan the DC30V AS-I transmission line be used as a load power supply for devices other than AS-i devices?No. If you connect the devices other than AS-i devices, communication error will occur. Please do not use them under any circumstances.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesIn case a mouse bites off the cable, the point of disconnection can be automatically detected?AS-i master is equipped with function to display all the slave addresses whose communication is disabled on the 7 seg LED in numbers when the slaves registered under the protected mode cannot communicate. When the cable is cut off, the slaves communication is displaced afterwards. Then, the user can get an approximate location of the disconnection based on the comparison between the address display on the 7 seg LED and the design diagram.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesWhen reconnecting the disconnected cable, do I need to reinstall the entire cable? Is it possible to mount a connector where the cable is disconnected and to reconnect it?Reconnection of the entire cable is unnecessary. Minimum reconnection is needed. Please follow the steps below.
 1. As you mentioned, try with a branch connector including M12 branch connector to connect with.
 2.A Use the branching function of the four-point input slave (FM6D1-40XX) of our waterproof connector slave thin type to connect the cable. (The total extension of the cable should be 100m or shorter.)
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesI mounted a M12 plug to the auxiliary power supply wire of the slave, and connect it with a M12 branch connector (3RX9801-0AA01); however, power did not supply.It seems like product failure. Please make an arrangement for replacement.
Programmable Control EquipmentAS-Interface EquipmentAS-Interface EquipmentAS-I seriesI mounted a M12 plug to the auxiliary power supply wire of the slave, and connect it with a M12 branch connector (3RX9801-0AA00); however, power did not supply.Please check the wiring to the M12 plug. Pin No.1and No.3 are +24V and 0V, respectively.
Control EquipmentCommand switchesOperation switches for distribution boardsAS22, AS15 seriesCan I lower the sound volume of the buzzer when the working voltage is lowered?Sound cannot be controlled by voltage. For lamps, brightness can be lowered when the voltage is down; however the sound of the buzzer depends on the specification (sounding frequency) of the built-in speaker. There is no way to electrically lower the sound volume. To adjust the volume, please use a buzzer with sound control.
Control EquipmentCommand switchesOperation switches for distribution boardsAS22, AS15 seriesIs there any dial plate on the operation switch for distribution panels AS15?No. Please prepare on your own. The applicable size of the nameplate is as follows.
Mounting hole:φ12.3-12.5mm
Thickness:4mm in maximum (Remove the washer for 4mm or over.)
Control EquipmentCommand switchesOperation, start switchesAS480, 482 seriesIs there any waterproof version of power push button switches AS480 and 482?No.
Control EquipmentCommand switchesOperation, start switchesAS480, 482 seriesWhat is the recovery method of the buttons on the power push button switches AS480 and 482?One-side latch structure. When pressing down the ON button, the ON button is held there. ON button is released by pressing down the OFF button.
Control EquipmentCommand switchesOperation, start switchesAS480, 482 seriesWhat is the material of the contact point for the power push button switches AS480 and 482?Silver contact point.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsB seriesIs it possible to manufacture CP50B type with an inertia delay?We do not manufacture CP50B type with an inertia delay.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsB seriesWhat kind of internal circuit does CP50B type use?The CP50B type's internal circuit is all connected in series.
LV Distribution & Motor ControlEarth leakage protective relaysEarth leakage protective relaysBRR, EL, RRD seriesIs it possible to perform an operation test by inputting a signal from outside to the T1 and T2 terminals of the RRD earth leakage protective relay?In an operation test of the earth leakage protective relay, the T1 and T2 terminals pass the current from the relay side to the ZCT.
These terminals are not intended to input any signal from outside.
LV Distribution & Motor ControlEarth leakage protective relaysEarth leakage protective relaysBRR, EL, RRD seriesIs there any earth leakage-protective relay that complies with UL standards?EL series relays comply with UL standards. Designate the type number nomenclature with "00415UL" at the end.
LV Distribution & Motor ControlEarth leakage protective relaysEarth leakage protective relaysBRR, EL, RRD seriesIs the leakage indicator of the EL series earth leakage protective relays designed to be reset automatically or manually?The leakage indicator cannot be reset unless the RESET button is pressed by hand or the control power is turned off.
LV Distribution & Motor ControlEarth leakage protective relaysEarth leakage protective relaysBRR, EL, RRD seriesFour EL protective relay ZCTs are used for the inverter output side (secondary side), and one of them is operated. We wish to know the principle of operation of EL protective relays and why it must not be used for the secondary side.On the secondary side of the inverter, the voltage and the fundamental frequency vary. Since an earth leakage protective relay is designed to detect a leakage in 50/60 Hz circuits, its operating sensitivity will increase or decrease as the frequency varies, and consequently the relay will not be able to operate according to the specifications.
The relay can detect a leakage on the secondary side even if it is mounted on the primary side. Thus, you will need to change the mounting position.
LV Distribution & Motor ControlEarth leakage protective relaysEarth leakage protective relaysBRR, EL, RRD seriesIs it necessary to connect the T1 and T2 terminals of the RRD earth leakage protective relay?These terminals must be connected.
If they are not connected, the relay will not operate even if the TEST button is pressed.
Control EquipmentCommand switchesCam type control selector switchesCommonAre the cam switches certified with overseas standards?Only standard products of AK22-1 and RC310-1 are compliant with EN60947-5-1 and certified with TUV.
Control EquipmentCommand switchesCam type control selector switchesCommonDo the cam switches have a CE mark? No.
Control EquipmentCommand switchesCam type control selector switchesCommonAre live-section covers for the cam switch RC310 series for control available?Yes. They are transparent covers, and the type number nomenclature is "AKX204."
Mount a cover by engaging it on the rear side of the main unit.
Control EquipmentCommand switchesCam type control selector switchesCommonAre live-section covers for the cam switch AK22-1 type for control available?Yes. They are transparent covers, and the type number nomenclature is "AKX203."
Mount a cover by engaging it on the rear side of the main unit.
Control EquipmentCommand switchesCam type control selector switchesCommonIs there a cam switch with tropical treatment?Yes. Please specify "tropical treatment" after the model number.
In general, the products with tropical treatment are different in the following points.
Terminal screw     Iron → brass, nickel plating
Mover (contact point) brass, pickling and glossy finishing → brass, silver plating
Shaft rust-proofing
Control EquipmentCommand switchesCam type control selector switchesCommonCan I specify the position to pull out the key on the key operation type in the control cam switch RC310 series?Yes. Please specify the position to pull out the key after the model number.
Example: RC310-1M4201J, the position to pull out the key, at the first notch
[Attention] If not specified, the standard positions to pull out the key is at each notch.
Control EquipmentCommand switchesCam type control selector switchesCommonCan the control cam switch specify the notch angle and handle/key operation position?No. The notch angle and handle/key operation position are not incorporated in the model number of the cam switch. If you cannot the find the model number you are looking for, please specify after the model number as follows.
Example: RC310-1M6301HB Start at 7:30, 45° notch degree
*Please specify the start of the handle/key operation position using the dial of clock.
[Attention] Please understand that we might not be able to make a product according to the content.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat type of cam switches is with the maximum flowing current?K138-6. Rated energizing current is 60A.
Control EquipmentCommand switchesCam type control selector switchesCommonDo you have any control cam switch with pushing/pulling operation function?No. Although we have the cam switch with micro switch as a similar product, its external dimension and the operation method are different from the standard product.
Control EquipmentCommand switchesCam type control selector switchesCommonHow can I place an order for the control cam switch whose contact point structure is nine-notch or over? It is not included in the standard connection diagrams. So, please place an order by adding "C" to the part representing contact point configuration.
  Example: RC310-1M C HB
Also, please explain the content of operation in the "element stage numbers" on the cam switch order sheet.
Control EquipmentCommand switchesCam type control selector switchesCommonIs there a cam switch cover for malfunction prevention?No.
Control EquipmentCommand switchesCam type control selector switchesCommonCan you make other meter switching cam switches not on the catalog?Yes. Please refer to the specification when placing an order.
Control EquipmentCommand switchesCam type control selector switchesCommonCan you make a manual recovery control cam switch with handle lock RC310F-1 (30φ mounting)?No. Although the manual recovery product with handle lock (B) is equipped with a bearing plate to lock the handle, it cannot be mounted to the 30φ mounting due to mechanical reason.
Control EquipmentCommand switchesCam type control selector switchesCommonCan you make a two-notch cam switch with micro switch RC310-1MS1?Yes, if you specify "45-degree notch angles" after the model number.
The plate to attached with a micro switch has grooves in 45-degree intervals. Since the standard product are with a 90-degree notch angle, we cannot make a two-notch cam without specification of the notch angle. Please refer to the specification when you placing an order.
Control EquipmentCommand switchesCam type control selector switchesCommonCan I place an order for a key alone for the key operation type cam switch?Yes. Please place an order as follows (Key are sold in pair).
Example: Keys for RC310-1J Type A
*Please specify the key type. (Types are A-F.)
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the material of the symbol board on the cam switch?Standard material is brass. Treated with nickel plating. Treated with aluminum is also available. Please specify.
Control EquipmentCommand switchesCam type control selector switchesCommonIs there any cam switch can be used in the low voltage small current circuit?Yes. 22φ control cam switch AK22-1 or twin contact point cam switch RC310-1 are available. Contact reliability is as follows.
  AK22-1              :AC,DC5V 5mA
  RC310-1 twin contact point cam switch :DC5V 1mA
Usable area might be changed based on the use surrounding environment condition as well as the type of the load.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the difference between the control cam switch RC310-1 and RC310-2?In general, following two points are different.
Rated energizing current
  RC310-1:10A   RC310-2:20A
Depth dimension
  With the same element stage number, RC310-2 is longer than RC310-1.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the maximum element stage number for the control cam switch RC310 series with case cover?The maximum number of the element stage is as follows.最大エレメント段数は次の通りです。
RC310g-1, RC310Fg-1 ,RC310g-2:3 stages
RC310Fg-2:2 stages
Control EquipmentCommand switchesCam type control selector switchesCommonWhat does the four-digit number on the cam switch standard connection diagrams mean? It represents the numbers of notch, element stages, and contact point configuration.
Example: 3 2 01
    1. 2. 3.
1. (1 digit): the number of notch 2-8 notches, but "S" for remaining contract point
2. (1 digit): the number of element stage, 1-10 elements, but "0" for 10 elements
3. (2 digits): serial number representing the contract point configuration 01-99
※ Please specify on the cam switch order sheet, if you would like a one with the numbers of the notch, element stages as well as the contract point configuration other than the above.
Control EquipmentCommand switchesCam type control selector switchesCommonCan I specify the handle color of the control cam switch?Yes, but the standard color is black. For other colors, we work on each case respectively.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the maximum element stage numbers for the control cam switch RC310?10 stages (the one with case cover is excluded.)
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the maximum element stage numbers for the control cam switch K138-2?10 stages.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the maximum element stage numbers for the control cam switch K138-6?10 stages.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the level of the protective structure for the control cam switch RC310?RC310-1 is IP40, and RC310F-1 is IP65.
Control EquipmentCommand switchesCam type control selector switchesCommonWhat is the difference between the cam switches RC310-1 and RC310F-1?Dimensions of the mounting hole are different. RC310-1 has φ8 holes in the center and φ4.5 (48mm pitch) holes on the four corners with a recessed front board. RC310F-1 for φ30 mounting is with a φ30.5 hole in the center.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonIs a command switch compliant with NK standards available?There is no NK standard for command switches, so the standard products can be used.
However, you are recommend to use one for tropical zones and wetlands because a command switch is to be used for marine vessels.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonDo you manufacture explosion-proof type command switches?No, we do not.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonWhat do "momentary type" and "alternate type" mean?Momentary type: The contact operates when the pushbutton is pressed and returns to the original position when it is released. (Spring return type. The contact will operate as long as the pushbutton is held down.)
Alternate type: The contact operates when the pushbutton is pressed. Even if the pushbutton is released, it is held down (Note), and the contact remains operated. By pressing the pushbutton again, both the pushbutton and the contact return to their original positions.
(Maintained type. The contact will be maintained even if the pushbutton is released.)
Note: In some types, only the pushbutton returns to the original position.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonWhat is the "trigger action mechanism"?In this mechanism, the contract point is not operated until the push button is completely locked.
(Locking of the push button and opening the contact points happen at the same time.)
It also prevents misoperation, because the contact point is not operated just by an accidental hit.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonWhat is the "forced opening function"?"Power of operation will directly becomes power to open contact". In other words, is it a structure to open contact by the rigid body without spring. When a slight welding of contract points happens, the contact points are easily separated.
IEC60947-5-1 stipulates that the push button switch for emergency stop must be equipped with this mechanism.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonWhat is the finger protection on the push button switch and the indication lamp?It means a structure that prevent the test fingers (artificial model of human fingers) compliant with IEC 60529 from contacting the energizing part in directions of driver insert and wire insert of the terminal unit. Protective structure is IP2X or IP20.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonCan the push down switch be used outdoor if the waterproof cap is on?In general, command switches are "indoor specification" product.
Most of them meet protection level IP65 and have a "structure not to be impacted by direct jet flow of water from any direction". This is not related to if waterproof cap is used or not.
To use command switches outdoor, on top of the rainwater, there will be problems like influence of the sunlight (ultra violet ray), deterioration and discoloration(deterioration of plastic material) of the operation unit (display unit), and lower visibility of the light under the external light, and mildew due to the temperature difference of the outer air.
Reference 1
  Ultraviolet light, ozone layer…further deterioration of rubber
Sunlight…further deterioration of plastic and bleach of the tone (discoloration)
Reference 2
   Main use of the waterproof cap
  To avoid operation of the button with wet hand or hand smeared with oil (protection of button part)
  Under the environment that water splashes on the operation unit and freeze it.(Since the cap is made of rubber, the product life and durability under the low temperature are different from the ones under the standard environment.)
    ★The use is to protect the operation unit, and does not affect the protection class.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonDoes the buzzer operating indicator LED come on when the buzzer sounds?It comes on when the buzzer sounds. (The same circuit is used to sound the buzzer and light the LED.)
The LED flashes when the buzzer intermittently sounds.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonI am using multiple buzzers. How can I differentiate the sound of a buzzer from the sound of the others?There are two sounds, electronic sound and electromagnetic sound.
Combine among the electronic sound/electromagnetic sound and continuous sound/intermittent sound to use.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonIs the buzzer normal even if it continues sounding? (When it cannot be reset immediately)There is no problem with it as a product.
It just takes up the guaranteed time of continuous sounding.
Control EquipmentCommand switchesCommand switches (operation switch/ indicator)CommonHow can I use the "types" of the keys on the select switch properly?Install multiple key switches on the panel and unify the "type" of the keys with the same symbol if you want to control all the switch with one key. To differentiate the one switch from others, change the "type" of the key.
Safety & Security SolutionSafety operation deviceEmergency stop pushbutton switchesCommonWhat is the push button switch for emergency stop?Main requirement are set in EN as follows.
1. Should be equipped with a certain opening circuit operation (forced separation mechanism).
2. Should be equipped with a certain opening circuit operation (forced separation mechanism).
3. Operation unit should be equipped with mechanical latch function (lock mechanism).
4. Operation unit can be easily operated with mushroom-shaped push button.
5. Operation unit should be in red, the background in yellow.
Related standards
EN60204-1, EN418, EN60947-5-1, EN60947-5-5
Safety & Security SolutionSafety operation deviceEmergency stop pushbutton switchesCommonWhat is the related standard EN60204-1 for the push button switch for emergency stop?"Safety of machinery – Electrical equipment of machines. Part1: General requirements" is the title of the standard.
It stipulates all the elements that machine requires electrical equipment. According to this standard, as the main equipment for the push button switch for emergency stop are "set in EN418 with regard to the functional side of the emergency stop device".
Safety & Security SolutionSafety operation deviceEmergency stop pushbutton switchesCommonWhat is the related standard EN418 for the push button switch for emergency stop?"Safety of machinery - Emergency stop equipment, functional aspects - Principles for design" is the title of the standard.
It stipulates principles of design for the emergency stop device for machinery.
As the requirements for the push button switch for emergency stop, followings are standardized.
1. Should be equipped with a certain opening circuit operation (forced separation mechanism).
2. Operation unit should be latched (locked) at the activated position with control contact point is open.
3. Operation unit should be equipped with mechanical latch function (lock mechanism).
4. Operation unit can be easily operated with mushroom-shaped push button.
5. Operation unit should be in red, the background in yellow.
Safety & Security SolutionSafety operation deviceEmergency stop pushbutton switchesCommonWhat is EN60947-5-5, which is a standard defining emergency stop pushbutton switches, like?The official title of the standard is "Low-voltage switchgear and controlgear -- Part 5: Control circuit devices and switching elements -- Chapter 5: Electrical emergency stop device with mechanical latching function."
The standard specifies details of electrical and mechanical structures of emergency stop devices with a mechanical latch function (emergency pushbutton switches) and test methods for them.
Safety & Security SolutionSafety operation deviceEmergency stop pushbutton switchesCommonWhat is EN60947-5-1, which is a standard defining emergency stop pushbutton switches, like?The official title of the standard is "Low-voltage switchgear and controlgear -- Part 5: Control/circuit devices and switching elements -- Chapter 1: Electromechanical control circuit devices." In 1999, the standard was transformed into a JIS standard with most of the provisions and requirements unmodified. (JIS C 8201-5-1)
The standard applies to control circuit devices and switching elements intended for the control of switchgear and controlgear, signals, interlocking, etc.
The standard defines the characteristics and electrical and mechanical requirements of control circuit devices and functional requirements to be fulfilled by control circuit devices.
In the standard, the following is specified as a major requirement relating to emergency stop pushbutton switches:
The operator shall be red and have a mushroom shape.
The provision of a "reliable contact open operation (direct opening mechanism) function" is defined in Annex K as a special requirement.
Safety & Security SolutionSafety operation deviceEmergency stop pushbutton switchesCommonWhat is the difference between the push button switch for emergency stop and the push button switch (push lock type)? The push button switch for emergency stop is compliant with EN418 and certified with the standard for the push button switch for emergency stop by TUV.
Followings are the main differences.
1. Push button switch for emergency stop
Equipped with forced separation mechanism.
Equipped with trigger action mechanism.
Button colors is red only.
Standard for TUV certification:EN60947-1,EN60947-5-1, and EN60947-5-5
2. Push button switch (push lock type)
No forced separation mechanism (some model are equipped with)
No trigger action mechanism.
Button colors can be other than red.
Standard for TUV certificiation:EN60947-1 and EN60947-5-1
LV Distribution & Motor ControlCircuit protectorsGeneralCommonWe wish to output ON and OFF operations to the outside by means of a CP. How can it be achieved?Designate a unit provided with an auxiliary switch (W) in the type number nomenclature.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonDoes the protective unit trip as soon as the rated current flows?In general, such a protective unit does not operate at 100% of the rated current.
It operates when the current exceeds 100% of the rated current.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonAn inertia delay and a delay device are available as measures against loads with a large inrush current. What is the difference between them?Both of them prevent unnecessary operation in case of an inrush current. The former mechanically delays operation, whereas the latter electrically delays operation.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonIs there any CP series product type that protects circuits from overvoltages?We do not manufacture overvoltage protection type CPs. All of our CPs are to protect circuits from overcurrents.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonIs there any CP series product that conforms to UL489?CP series comply with UL1077. When it is necessary to comply with UL489, please consider using a breaker.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonPlease tell us about the standards that are applicable to CPs.The Japanese standard covering circuit protectors is "JIS C 4610" and it defines circuit protectors as circuit breakers that operate with a rated voltage of 300 V AC or less (frequency: 50 or 60 Hz) or 65 V DC or less and are installed within electric components, and used to protect components with a rated current of 50 A or less from overcurrents.
This standard means that circuit protectors are not molded case circuit breakers to be used for general low-voltage indoor circuit line protection.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonCan a circuit protector be used for 440 V AC circuits?No, it cannot be used for 440 V AC circuits.
The operational voltage of a circuit protector specified in standards is 300 V or less.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonCan a circuit protector be used for 100 V DC circuits?Although our circuit protectors are applicable to 65 V DC or less, the following two-pole products will become applicable to 100 V DC by connecting their contacts in series:
CP32F and CP32T…125 V DC, CP32D…100 V DC
LV Distribution & Motor ControlCircuit protectorsGeneralCommonCan a circuit protector for AC circuits be used for a DC circuit?No circuit protector for AC circuits can be used for a DC circuit because the operating characteristic of the circuit protector will change.
However, the "medium time delay tripping types and instantaneous types of CP-F" have a characteristic designed to make them compatible with both AC and DC circuits.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonIs any circuit protector series available for 400 Hz circuits?Since an oil dashpot and an electromagnetic coil are used for the overcurrent trip mechanism to operate the circuit protector with electromagnetic force, the operating characteristic of the circuit protector will significantly change due to the effect of the frequency. No circuit protector series is, therefore, available for 400 Hz circuits.
LV Distribution & Motor ControlCircuit protectorsGeneralCommonIs it possible to perform an operation test on a protective unit in general? Is it also possible to output an alarm contact?It is impossible to perform a mechanical trip test from outside.
The only way is to supply a current from a temporary load and cause a trip.
Control EquipmentIndustrial control relaysGeneralCommonWhat is the new model of the old type annunciator relay "JH23P"?"ADA1P" series. "" at the end of the model numbers are different according to the internal circuit. Please refer to the catalog.
Control EquipmentIndustrial control relaysGeneralCommonWhat does "5% or over" mean in the coil rated reset voltage of the industrial control relay?It means that when there are 100 relays with a coil rated voltage of 100 V, all of the 100 relays will be reset (released) if the voltage drops to 5 V although each of them has some variation.
Control EquipmentIndustrial control relaysGeneralCommonIs the coil of the magnetic retaining relay a short-time rated?The coil is continuous rated.
Control EquipmentIndustrial control relaysGeneralCommonDoes a DC-operated coil have polarity?Connect the relay according to its polarity, if designated in the catalog.
In the case of an industrial control relay provided with a surge suppression circuit, the element may break if the circuit is reversely connected.
Control EquipmentIndustrial control relaysGeneralCommonIs there any problem with the continuous excitation of the relay?If the relay is continuously energized for a long time without making and breaking it, contact resistance will increase with the rise in temperature of the coil. Use a magnetism-hold type relay or a relay provided with a gold-plated contact.
Control EquipmentIndustrial control relaysGeneralCommonWhat does the relationship between the parallel resistance for the recovery interference prevention of the AC control relay look like when it is "operated by the instantaneous input contact point"?Please assume the same resistance value and a half line length of the "operation by the continuous input contact point".
LV Distribution & Motor ControlLow Voltage FusesGeneralCommonWhat are the melting and operating characteristics like?The melting characteristic is the value until the fuse element (element) melts when an overcurrent flows through the fuse.
The operating characteristic is the value until the fuse element (element) melts as a result of the generation of an overcurrent and the subsequent arc extinguishes.
LV Distribution & Motor ControlLow Voltage FusesGeneralCommonWhat is the phenomenon of current-limiting breaking like?Current-limiting breaking means controlling and breaking a current with an arc voltage to prevent the current from reaching its peak value (or the maximum value in the case of a direct current) when the fuse is activated with a large current.
LV Distribution & Motor ControlLow Voltage FusesGeneralCommonShould the rated current of a fuse be selected allowing for some margin against the load current?Use a load current that is 70% or less of the rated current of the fuse with the life of the fuse taken into account.
LV Distribution & Motor ControlLow Voltage FusesGeneralCommonPlease tell us the temperature of low-voltage fuses in general during storage.The temperature of low-voltage fuses is -60 to +75℃.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonAre terminal covers for magnetic contactors and switches options?You can order a main unit with a terminal cover by adding "/T" to the end of the type number nomenclature of the main unit.
(You can also place orders for terminal covers separately.)
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonWhat is the electrical durability of a thermal overload relay?One thousand times.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonHow many years can magnetic contactors and magnetic starters be used for?It is impossible to determine accurate durable years because they differ depending on the customer’s conditions and environment of use. However, "Advice about Maintenance and Inspections of High-voltage and Low-voltage Electrical Equipment" issued by the JEMA (Japan Electrical Manufacturers’ Association) specifies ten years or the specified number of switching times as the recommended replacement timing, and Fuji Electric FA also recommends it.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonPlease tell us the terminal numbers of magnetic contactors.Main circuit contact - Primary side: 1, 3, 5
       Secondary side: 2, 4, 6
Auxiliary contact - NO-contact last digit (3-4) Example: 13, 14
       NC-contact last digit (1-2) Example: 21, 22
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonDoes the DC-operated coil of a magnetic contactor have polarity?The DC-operated coils of the SC series do not have polarity. The DC-operated coils of the SJ series are A1(+) and A2(-).
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonWhat if a current higher than the current setting points is set?The characteristics cannot be guaranteed. A slight difference will arise between the minimum and maximum current setting points.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonIs it possible to protect plural motor loads with a single thermal overload relay?Use one thermal overload relay for one motor. Plural motors cannot be protected with a single thermal overload relay.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonDo power connection kits need to be mounted in a fixed direction?The wires have the power supply side and the load side. When mounting wire kits, correctly connect the wires with care.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonCan auxiliary contacts be replaced?Auxiliary contacts cannot be replaced. Use an auxiliary contact block instead of replacing auxiliary contacts.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersGeneralCommonCan a mechanical-latch magnetic contact be provided with a thermal overload relay?Yes, it can be provided with a thermal overload relay. However, it is based on the premise that a circuit is configured to release the main contact by means of a trip coil (with an auxiliary NO-contact) when the thermal overload relay trips.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersGeneralCommonCan a shunt trip device and an undervoltage trip device be mounted together?These devices cannot be mounted together. Only either one can be mounted.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersGeneralCommonA 3pole plug is connected to the earth leakage circuit breaker EX15E, but the grounding terminal on the side face is not grounded. Can the breaker detect a leakage?The breaker can detect a leakage.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersGeneralCommonPlease explain the cold start and hot start characteristics of the operating characteristics.The operating characteristic when the current starts to be supplied from a non-energized state at ambient temperature on which the breaker is based is called a cold start characteristic.
On the other hand, the operating characteristic when an overcurrent is supplied from the state of long-period flow of the load current is called a hot start characteristic.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersGeneralCommonHow long is the lead wire of each internal accessory?The length of a standard lead wire is 500 mm.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersGeneralCommonWhat is the difference between a molded case circuit breaker and a motor breaker?A molded case circuit breaker is intended to protect wires, whereas a motor breaker functions to perform both wire protection and overload protection for the motor.
The operating characteristics and the rated current are different between them. Please see the catalog.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersGeneralCommonThe earth leakage circuit breaker EX15C probably will detect a leakage, but can it operate in case of a short circuit?Since the EX15C is an earth leakage circuit breaker exclusively for ground fault protection, it does not operate in case of an overcurrent or short circuit.
Energy Control Equipment & Protective Control EquipmentPower monitoring unitGeneralCommonWhat is the "power monitoring system" by F-MPC series?Following is the summary of the power monitoring system. The power monitoring software installed on the PC (Windows NT compatible) gather measurement data measured by F-MPC series and display them on the monitor screen. Based on the gathered data, forms can be created, saved and printed. Trend data like voltage and current as well as alarm data are automatically saved to support data analysis.
Energy Control Equipment & Protective Control EquipmentPower monitoring unitGeneralCommonWhat is the monitoring function of the power monitoring system?The power monitoring system has the following functions:
1) Measured value display
Displays measured analog values of current, voltage, power, etc.
Displays measured values of active electric energy (integrated power), etc.
Four arithmetical operations of measured data can be executed.
2) Demand monitoring
Monitors 30-minute demand at up to two points.
(Predicted power excess output and alarm power excess output are available.)
3) Trend display
Displays up to 40 analog trends and up to 80 electric energy trends.
4) Alarm display
Outputs an alarm to the unit displaying an alarm. Alarms can also be printed and saved.
5) Document output
Creates, saves and prints daily, monthly and annual reports.
Energy Control Equipment & Protective Control EquipmentPower monitoring unitGeneralCommonWhat are the required specifications of the personal computer to be used for the power monitoring system?1) Hardware
DOS/V (PC-AT compatible)
CPU: PentiumR 233 MHz or over
HDD: 1 GB or over
Memory: 128 MB or over
CRT: Color CRT, 17-inch or larger (resolution: 1024 x 768 dots)
Auxiliary storage unit: MO drive
Printer
2) Software
OS WindowsR NT4.0 Service Pack 3 or later
Power monitoring system software: Fuji Electric FA Components & Systems’ software (supplied on CD-ROM)
Spreadsheet software: MicrosoftR ExcelR 97
Energy Control Equipment & Protective Control EquipmentPower monitoring unitGeneralCommonThe monitoring location is distant from the measurement site, what can we do about it?1. In the case of a standard system
The maximum length of the RS-485 communications cable is 1,000 meters.
2. In the case of a customized system
Determine the details through consultation with the customer.
1) "In-plant PHS"
2) "SS radio"
3) The transmission distance can be extended by means of a "public line."
Control EquipmentSensors, SwitchesGeneralCommonWhat does a standard detected object mean?It is a detected object prepared as the standard for the measurement of basic performance where shape, dimensions and material are predetermined. Iron is generally used as the material of standard detected objects.
Control EquipmentSensors, SwitchesGeneralCommonWhat does the operating distance mean?The operating distance is the distance from the predetermined reference position (detection surface) to the point of operation.
Control EquipmentSensors, SwitchesGeneralCommonWhat does the return distance mean?The return distance is the distance of return from the predetermined reference position (detection surface).
Control EquipmentSensors, SwitchesGeneralCommonWhat does "differential" mean?"Differential" means the difference between the operating distance and the return distance and is expressed as the ratio to the operating distance.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat compound should be used to mount an SSC and a cooling fan?Use a heat-conductive compound. Recommended manufacturers and compound types are shown below.
Silicone manufactured by Toshiba: YG6111, YG6240
Silicone manufactured by Toray: SC102
Silicone manufactured by Shin-Etsu: G746
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat types of SSC fault modes are there?Main circuit: Short circuit or open state (cause: overvoltage, overcurrent, etc.)
Operating circuit: Failing to operate or continuously operating (cause: application of overvoltage, operating voltage error, etc.)
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan we purchase only the cooling fan for a fin provided with a cooling fan?We do not supply fans alone. Please place an order for a fin.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan we purchase a cooling fin later?You can separately purchase a cooling fin for a three-pole SSC.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWe wish to select an SSC for a 200 V AC main circuit. Which of an SSC for 100 to 240 V AC and an SSC for 200 to 480 V AC should we select?Either SSC is available for a 200 V AC main circuit, but we recommend an SSC for 100 to 240 V if you do not plan to use an SSC for 400 V AC in the future.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonApplication of ceramic heater loadIn a ceramic heater, an inrush current three to four times higher than the steady-state current flows for approximately 1 second. Thus, select an SSC referring to the motor application table.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonConsideration of use of a cooling fin for an SSCConsider using a cooling fin for an SSC so that the base temperature of the SSC will be kept at 60 K or lower.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the zero cross function like?Zero cross is a function to suppress the generation of noise at startup by turning ON the SSR with the load voltage at a level close to 0 V.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonHow long is the make/break durability of an SSC?An SSC does not suffer from mechanical wear attributable to switching because it is not switched by a contact, such as a magnetic contactor. Thus, there is no limit to the number of switching times as long as it is equal to or lower than the switching frequency limited by operating/release time.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the amperage (A) of the input current for 12 V DC operation of an SSC?It is 5 mA. The amperage is not common for all types. Specify types.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonDoes an SSC need to be mounted in any specific direction?Since an SSC consists of a semiconductor, it is not affected by the mounting position. However, always mount it with the fin opening section facing up or down so that the heat radiation effect will not be restricted.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the operating voltage detection function like?The operating voltage detection function ensures stable operating characteristics that are free from unnecessary operation or release against operating voltage fluctuations by maintaining a difference between the operating and release voltages.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the power consumption of an SSC?A loss of 1 A = 1 W occurs per phase (per element).
The power consumption of the SS301 is 30 A x 1 phase = approximately 30 W.
For details, see Technical Document 012708.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhy is the snubber circuit of an SSC required?When the inductive load opens or closes, a high voltage will be suddenly applied across the terminals of the SSC.
The snubber circuit is incorporated to control this voltage and thereby protect the SSC.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonDoes a leakage current occur to an SSC?A leakage current occurs via the snubber circuit inside the SSC.
(The snubber circuit is the main cause of a leakage current.)
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the non-repetitive surge-on current of an SSC?The non-repetitive surge-on current means the non-repetitive maximum current that can be supplied to an SSC.
In general, it is indicated by the commercial frequency, the sine wave or the current peak value of one cycle.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the heat value of an SSC?Heat value (W) = Voltage drop in contact-closed state (V) x heat release current (rated thermal current ) (A) x 2 or 3 elements
The voltage drop in the contact-closed state is as follows:
SS03 to SS120 and SS30H to SS120H - Max. 1.55 V (rms) at 100% lth
SS202E to SS502E, SS101 to SS2001 and SS701H to SS2001H - Max. 1.6 V (rms) at 100% lth
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat are the connection terminal numbers of the fan and thermostat equipped with a cooling fin?Fan: Terminals No. 1 and No. 2 Thermostat: Terminals No. 3 and No. 4
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhere are the cooling fan and thermostat terminals provided?Cooling fan: Terminals No. 1 and No. 2 Thermostat: Terminals No. 3 and No. 4
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the leakage current of a single-pole SSC?When 60 Hz is applied at 100% Vn, the leakage current in the open-contact state is a max. of 10 mA in the case of SS101 to SS501 types, and a max. of 40 mA in the case of SS701 to SS12001 and SS701H to SS1201H types.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is the noise level of a fin provided with a cooling fan?A3, A4: 33/38 dB, 50/60 Hz, D5: 28 dB. This description is not adequate, and the measurement method needs to be added.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonIs it possible to turn on an SSC without using its cooling fan?The SSC can be turned on without using its cooling fan, but the rated thermal current will considerably decrease.
The rated thermal current of the SS803, for example, will drop to approximately 40 A. For details, see SSC Technical Document.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan an SSC be driven directly from a temperature regulator?To perform heater control by a combination of an SSC and a temperature regulator, use a voltage output type for the temperature regulator. In addition, make sure that the input impedance of the SSC is equal to or higher than the load impedance of the temperature regulator.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonPlease tell us how to protect SSCs.They can be protected by using a combination of a semiconductor protection fuse and a low-voltage circuit breaker.
A semiconductor protection fuse is essential to protect SSCs from a short circuit.
*For details, please see the catalog.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan SSCs be mounted by dense side-by-side mounting?SSCs can be mounted by dense side-by-side mounting, but there is thermal interference between the SSCs. It is, therefore, necessary to use them by reducing the current.
*For details, please see the catalog.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan SSCs (SS03 to SS120 types) be reversely connected?Yes, they can be reversely connected.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhen the polarity of a DC-operated circuit terminal of an SSC is reversed, does the SSC operate?The SSC does not operate even if a positive (+) current flows into it because a diode is set on the negative (-) side.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonAn SSC supporting 80 A or over is provided with a thermostat terminal. Is it necessary to connect it?An SSC supporting 80 A or over (types SS80, SS120) is provided with a cooling fan and a thermostat terminal. If the cooling fan is faulty, the heat generated by the SSC will increase. In this case, turn off the SSC by means of the thermostat terminal (NC-contact).
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat is cycle control like?Cycle control is the system of controlling the load power by repeating make (ON)-break (OFF) intermittent operation on SSC for the specified number of cycles within a given control period. When the set control period is 1 second and the output cycle is 40%, the power will be turned on for 0.4 seconds and turned off for 0.6 seconds.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonIs it possible to make a soft start with an SSC?It is impossible to make a soft start with an SSC. To make a soft start by changing the phase, use an APR (AC power regulator).
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan the zero cross function be used for a motor load?The level of the starting current of an inductive load, such as a motor, changes in the power supply phase and reaches the highest value at 0℃ in the power supply phase. This means that an excessive starting current flows through an SSC provided with a zero cross function when the power is turned on. We recommend an SSC without a zero cross function.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWe wish to reverse a motor with the aid of an SSC. Is a reversing unit indispensable in this case?No reversing unit is required if the circuit can maintain forward-reverse switching time with an interlock circuit.
A reversing unit can be easily connected because it contains a timer circuit designed to maintain 100 ms forward-reverse switching time with an interlock circuit.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan an SSC be used for a capacitor load?In the case of a capacitive load, such as a capacitor, the power voltage and the capacitor charging voltage may be applied across the terminals of an SSC when it is turned off. When the power voltage is 200 V AC, use an SSC whose main circuit rated voltage is 200 to 480 V AC.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan a temperature regulator be connected to plural SSCs?In series connection, make sure that the voltage applied to a single SSC is within its operating voltage range. In parallel connection, keep the total input current of the connected SSCs equal to or below the output current capacity of the temperature regulator.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonIs it necessary to take a measure against leakage currents when an SSC is open (turned off)?Even if an SSC is open, the load remains live with a leakage current. For this reason, do not fail to provide an upstream SSC with a contact switch.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonCan an SSC provided with a zero cross function be used for a single-phase half-wave rectifier circuit without any problem?An SSC provided with a zero cross function does not operate with a single-phase half-wave rectifier circuit because the voltage does not drop to the zero point and no ON command is output.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonIs it possible to attach a thermal overload relay to a three-pole SSC?A thermal overload relay cannot be attached directly to the main unit of an SSC. Please select a separate mounting-type thermal overload relay.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonIs there any method of heater control suitable for the temperature regulator’s analog output of 4 to 20 mA?By using an SSC and the power control unit "SY-P- type" in combination, heater control suitable for the temperature regulator’s analog output of 4 to 20 mA can be ensured.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonThe SSC is not turned off although the control signal is turned off. Is it a failure?It is ascribable to any of the following:
1. Short circuit fault of the main circuit. (Replace the SSC.)
2. The SSC may malfunction due to a leakage current when a non-contact switch is used to control the SSC.
  (As a measure against it, shunt the leakage current by connecting a bleeder resistor.)
3. The thyristor or triac element cannot be turned off unless the load current is reduced to zero.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonThe SSC is not turned on although a control signal is output. What is the cause of this problem?It is ascribable to any of the following:
1. The output of the control circuit is a non-contact switch, and the load current is equal to or lower than the holding current of the output element.
  (Increase the load current by connecting a dummy resistor.)
2. The output of the control circuit is a contact switch, and there is a contact defect with the contact.
  The control sections of many SSCs operate in a low-level circuit range (the control current is several mA).
  (Use a contact compatible with a low-level circuit, a gold-plated contact, etc.)
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonA voltage is output from the secondary side although the SSC is not turned on. Is it a defect?When no load is connected, a leakage current induced by the snubber circuit for protecting the element flows, and a voltage is output from the load side even if the SSC is turned off. Connect to the SSC a load with a current of 1 A or over to check if the SSC properly operates.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonSSC operation checkAn SSC does not operate unless a current equal to or higher than the thyristor holding current flows through the main circuit. Connect to the SSC a load in which a current of 1 A or over flows to check if the SSC properly operates.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonWhat if an SSC is provided only with a fault detector unit and no load is connected to it?The state will be detected as a short circuit fault by mistake. A CR circuit is connected in parallel with the thyristor element of the main circuit of an SSC to protect the thyristor element from an overvoltage, and when the SSC is turned off, the leakage current will flow and be detected as a short circuit fault. This error will be resolved by connecting a load.
LV Distribution & Motor ControlSolid-state contactor (SSC)GeneralCommonY-Δ start control by an SSCSelect an SSC as in the case of a magnetic contactor, and set a switching time of 100 ms or longer to prevent an interphase short circuit at the time of Y-Δ switching.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonPlease tell us about the tightening torque of the main unit mounting screws of plug-in type fuses.The tightening torque is approximately 1.44±0.16 Nm.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonWhat is the purpose of "cushion paper" attached to a plug-in type fuse?Remove the ring-shape half-removed section of the cushion paper, and insert the cushion paper between the flat washer of the mounting screw and the fuse base mounting hole. For other sections, tighten the mounting screws with the cushion paper placed on the bottom of the fuse base.
When the fuse base is an insulator, the cushion paper is used to prevent it from chipping.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonPlease tell us how to fix the semiconductor protective fuse CR2L(S) of 200 A or over.You can easily mount the fuse directly on a fixed conductor, etc.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonCan the fuse link of a plug-in type fuse be replaced in the hot line state?No. When you replace the fuse in accordance with your own judgment, turn the cap, and the fuse link will also come out. In this state, replace the fuse link.
When removing and attaching the cap, take great care not to touch the live section (metallic section).
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonWhen a current that is approximately 80% (approximately 18 A) of the rated current is continuously applied to the semiconductor fuse BLC023, what temperature will the cap section rise to?The temperature of the cap section will rise 30 to 40℃. Add ambient temperature to this temperature. For example, when ambient temperature is 30℃, the temperature of the cap section will rise to 60 to 70℃.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonDo you supply 1 A plug-in type fuses?We can manufacture 1 A plug-in type fuses as special products.
The fuse type is "BLA001Z," but fuses are not provided with a blown-fuse indicator.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonDo you supply live-section protective cover for plug-in type fuses?We supply protective covers for 30 A plug-in type fuses. The protective cover type is "CG-30."
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonDo you supply fuse holders for solid ferrule-type fuses (FCFs)?We do not manufacture fuse holders for solid ferrule-type fuses.
Commercially available fuse holders specified in JIS standards can be used.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonDo you supply fuse holders for the semiconductor protective fuse CR2L(S) of 200 A or over?We manufacture fuse holders for fuses of up to 175 A.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonCan the super-rapid fuse types CR2L(S) and CR6L be applied to DC circuits?The CR2L(S) can be applied under conditions of 300 V DC, a time constant of 15 ms and a breaking current of 10 kA or under conditions of 400 V DC, a time constant of 1.2 ms and a breaking current of 120 kA or less.
The CR6L can be applied under conditions of 440 V DC, a time constant of 15 ms and a breaking current of 10 kA or under conditions of 735 V DC, a time constant of 1 ms and a breaking current of 150 kA.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonCan the super-rapid fuse types CS5F, CS10F and CS15F be applied to DC circuits?The CS5F can be applied under conditions of 440 V DC, a time constant of 8 ms and a breaking current of 10 kA.
The CS10F can be applied under conditions of 780 V DC, a time constant of 5 ms and a breaking current of 10 kA.
The CS15F can be applied under conditions of 1,000 V DC, a time constant of 5 ms and a breaking current of 10 kA.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonAre UL standard-certified plug-in type fuses available?Fuji Electric FA’s plug-in type fuses do not comply with overseas standards.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonCan the super-rapid fuse CS10F type be applied to DC circuits?It can be applied under conditions of 780 V DC, a time constant of 5 ms and a breaking current of 10 kA.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonCan the super-rapid fuse CS15F type be applied to DC circuits?It can be applied under conditions of 1,000 V DC, a time constant of 5 ms and a breaking current of 10 kA.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonPlease tell us about the withstand voltage value between the live section of a plug-in type fuse and the ground.It is 2,000 V for one minute.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonAre plug-in type fuses applicable to a direct current (DC)?Yes, they are applicable to a direct current. The breaking capacity of plug-in type fuses is 600 V DC, which is the same as the breaking capacity when they are applied to an alternating current (AC), and the breaking current is 100 kA.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonAlthough 300 V is marked on the body of a plug-in type fuse as its rated voltage, the catalog explains that it is applicable to up to 600 V. Is this description wrong?The 300 V marking indicates that the fuse is granted old electrical product certification.
It is applicable to up to 600 V in use specified in JIS standards.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonIs a plug-in type fuse with "D" at the end of its type number nomenclature a special product?A fuse with "D" is a special product and is applicable to an operational voltage of 24 V DC.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonDo fuse holders for the semiconductor protective fuse CR2L(S) comply with any standard?These fuse holders comply with JIS C 2811 "Terminal blocks for industrial use."
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonFuses of the semiconductor protective fuse BLS series are identical in shape to plug-in type fuses. Is there any difference between them?Fuses of the BLC series are for semiconductor protection, and their "breaking energy" is much lower than that of plug-in type fuses. The purpose of protection is different.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonWhat is the difference between type G High Cut and Super Cut?The major difference between them is that Super Cut guarantees "load switching" but type G High Cut does not.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonCan plug-in type fuses be used at 400 Hz?Yes, it is possible. (Their specifications are close to the direct current.)
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonAre heat-resistant type fuses applicable to 400 V circuits?These fuses are not applicable to 400 V circuits because they are certified for 250 V circuits.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonAre plug-in type fuses CCC-certified?Plug-in type fuses are covered by CCC but are not CCC-certified.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonDo you supply FCF and FCK series solid ferrule-type fuses for tropical humid and cold regions?Standard fuses can be used in these regions.
Their operating temperature ranges from -40 to +40℃.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonPlease tell us about the minimum operating temperature of the semiconductor protective fuses CR2L, CR6L, etc. provided with a blown-fuse indicator.The minimum operating temperature is -40℃, which is the same as that of the main unit.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonWhat is the purpose of the ring within the plug-in type fuse base?The diameter of the cylinder and the hole diameter of the ring match with each other to prevent the user from setting a fuse ring with a higher rating than the rated current used at present by mistake.
Even if this ring is not used, electrical problems will not arise as long as the correct rated current is applied.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesCommonIs it possible to use a "fuse provided with a blown-fuse indicator" of the semiconductor protective fuse CR2L(S) with a fuse holder?A fuse holder cannot be used for a fuse provided with a blown-fuse indicator.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersMagnetic contactor, magnetic starter, thermal relay by applicationCommonCan TR-0NZ716 be mounted with the single installation unit (SZ-HB)?No. The single installation unit (SZ-HB) is for TR-0N. It cannot be mounted due to the different terminal pitch.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersMCCB/ELCB by applicationCommonThere is an exclusive 240V product for UL compliant breakers in BU series. Can it be used with AC100V? Yes. It can be used at AC240V or under.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersMCCB/ELCB by applicationCommonPlease tell us about the difference between auxiliary and alarm switches for internal accessories.An auxiliary switch follows the turn-on and turn-off of the main unit of the breaker.
It is used to electrically indicate the on and off states of the breaker.
The contact of an alarm switch will be switched when the breaker trips due to an overload, etc.
It is used to indicate the fact that the breaker has tripped.
Control EquipmentSensors, SwitchesPhotoelectric switchesCommonWhat is the operation "light-on" of photoelectric switches?"Light-on" means that the output transistor is turned on when light is received.
Control EquipmentSensors, SwitchesPhotoelectric switchesCommonWhat is the operation "dark-on" of photoelectric switches?"Dark-on" means that the output transistor is turned on when light is interrupted.
Control EquipmentSensors, SwitchesPhotoelectric switchesCommonPlease explain the principle of operation of transmission-type photoelectric switches.Transmission-type photoelectric switches detect the amount of light that reached the photo-receiving unit when light emitted from the light projecting unit was interrupted by the detected object.
Control EquipmentSensors, SwitchesPhotoelectric switchesCommonPlease explain the principle of operation of retroreflective-type photoelectric switches.Retroreflective-type photoelectric switches detect the amount of light that reached the photo-receiving unit when light emitted from the light projecting unit was reflected on the reflex reflector and interrupted by the detected object.
Control EquipmentSensors, SwitchesPhotoelectric switchesCommonPlease explain the principle of operation of diffuse-reflection type photoelectric switches.Diffuse-reflection type photoelectric switches detect the amount of light that reached the photo-receiving unit when light was emitted from the light projecting unit and reflected on the detected object.
Control EquipmentSensors, SwitchesProximity switchesCommonPlease explain the principle of operation of high-frequency inductive proximity switches.High-frequency inductive proximity switches stop oscillation by changing the impedance of the oscillating coil in a high-frequency oscillating circuit.
Control EquipmentSensors, SwitchesProximity switchesCommonPlease explain the principle of operation of magnetic proximity switches.Magnetic proximity switches drive reed switches, etc. with the aid of the magnetic force of a permanent magnet.
Control EquipmentSensors, SwitchesProximity switchesCommonWhat does the vertical detection distance mean?The vertical detection distance is the distance measured from the reference plane when the standard detected object is brought close to the switch in the direction of the reference axis.
Control EquipmentSensors, SwitchesProximity switchesCommonWhat does the horizontal detection distance mean?The horizontal detection distance is the distance measured from the reference axis when the standard detected object is moved in parallel with the reference plane. This distance depends on the position of passage, and thus can be expressed as the locus of operating points.
Control EquipmentSensors, SwitchesProximity switchesCommonWhat does the response frequency mean?The response frequency means the number of times per second the follow-up output can be issued when the detected object is repeatedly brought close to the switch.
Control EquipmentSensors, SwitchesProximity switchesCommonCan inductive-type proximity switches be mounted by dense side-by-side mounting?When two or more inductive-type proximity switches are mounted opposite to or in parallel with each other, they will interfere with each other. Maintain a distance equal to or longer than the value specified in the catalog.
Control EquipmentSensors, SwitchesProximity switchesCommonWhat does the arrow marked on the main units of magnetic proximity switches mean?The arrow marked on the type AES and type AEQ magnetic proximity switches indicates the detection surface. The switches do not operate unless they move in parallel with the arrow.
Control EquipmentSensors, SwitchesProximity switchesCommonDoes the detection distance change with ambient temperature?Although the detection distance changes with ambient temperature, the detection distance of standard switches changes ±10% within the temperature range of -25 to +75℃.
Control EquipmentSensors, SwitchesProximity switchesCommonAre proximity switches affected by metals around them?When mounting a proximity switch in a location where metals are used around it, maintain the distance between the switch and the metals specified in the catalog.
Control EquipmentSensors, SwitchesProximity switchesCommonHow many years can inductive-type proximity switches be used?It is difficult to estimate accurate life expectancy because inductive-type proximity switches do not use such parts as relays (life expectancy based on contact wear is possible). However, the life expectancy of the products is estimated as approximately ten years when they are used indoors under general conditions of use.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs there any alternative to the electronic thermal overload relay QA-1 type?There is no equivalent relay to QA-1 type.
To detect overloads and phase losses, the 2E type of thermal overload relays (TK- series) are available.
To detect and verify the phase rotation of power supplies, phase-reversal relays can be used.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is provided as an alternative to SRC3631-5-1 type and to one with a thermal overload relay?SC-5-1 type. SW-5-1 type is provided for one with a thermal overload relay.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is an alternative to SRC3631-5-1B type?SC-5-1 type. Or, SW-5-1 type is provided with a thermal overload relay.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonAre 3E relays available?We do not have 3E relays. Instead, 2E thermal overload relays and phase-reversal relays can be used in combination.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIn thermal overload relay selection, a quick operating thermal overload relay is considered suitable for a compressor motor. Isn’t a standard-type thermal overload relay usable for a compressor motor?A compressor motor is susceptible to overcurrents, and if a standard-type thermal overload relay is used, the motor may be burned out before the thermal overload relay starts to operate. For this reason, a quick operating thermal overload relay is suitable for a compressor motor.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs there any unit that can detect overloads, phase losses, and phase reversal?The combination of types TK- (thermal overload relay) and QE- (phase reversal relay) can detect them.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs there any main circuit surge suppression unit that is applicable to 200 V, 7.5 kW motors?Units of 0.1 to 3.7 kW are sold.
In the case of 7.5 kW, see the following:
Recommended CR element constants (200 to 240 V, Δwire connection for 3φ)
5.5 kW    0.22 μF × 3 + 47 Ω, 6W × 3
7.5 to 15 kW  0.33 μF × 3 + 33 Ω, 6 W × 3
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs it possible to manufacture 460 V AC operating coils using an SC-03?We can manufacture coils of the following voltages at request:
SC-03 to SC-N5A: We manufacture operating coils of 24 to 600 V AC.
SC-N5 to SC-N12: We manufacture operating coils of 24 to 575 V AC.
SC-N14, SC-N16: We manufacture operating coils of 100 to 575 V AC.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan I order a machine latch unit (head-on) only?Unfortunately, we do not take order for machine latch unit only because it needs calibration. (machine latch type)
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhether a spring-return type of the embedded type of thermal overload relay TU-0 type can be manufacturedThe embedded-type thermal overload relay TU-0 type comes in only a manual return type.
*For details, please see the catalog.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat are the minimum operational voltage and current of the auxiliary contact of the thermal overload relay TR-0?The minimum operational voltage and current are 24 V DC and 10 mA.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat does "RC" on the current setting dial mean?It means an operating current value. Non-operation at 105% of the set value, will be operating in less than 2 hours at 120% (limit operation).
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat do the hot start and cold start of the operating characteristics of thermal overload relays mean?The cold start characteristic is the operating characteristic when the motor starts to run after it has been turned off for at least 15 minutes. The hot start characteristic is the operating characteristic when the motor running at the rating is turned off and immediately restarts to run. To ensure operational coordination, consider coordination between the operation method of the motor and the cold start and hot start characteristics of the thermal overload relay.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhen a thermal overload relay is vertically mounted and turned 90 degrees in the clockwise or counterclockwise direction, will its operating characteristics change?In the case of types TR-0N, TR-5-1N and TR-N10 to TR-N14, the minimum operating current will increase approximately 5% when they are turned 90 degrees in the clockwise direction. On the other hand, when they are turned in the counterclockwise direction, the minimum operating current will drop approximately 5%.
In the case of types TR-N2 to TR-N8, the minimum operating current will drop approximately 5% when they are turned in either direction.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonDoes a leakage current flow in a coil-surge suppression unit?In a CR-containing type coil-surge suppression unit, the leakage current is approximately 14 mA when the rated voltage of 200 V AC is applied, or approximately 3 mA when the rated voltage of 24 V AC is applied.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is the difference between the abnormality detection unit and the contact point welding detection unit?Welding detection with the abnormality detection unit is two-three phase welding detection.
(With the contact point welding detection unit, detection is possible with one phase)
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is a contact transfer protector unit like?A contact transfer protector unit can prevent contact wear.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan a three-element thermal overload relay provide phase-loss protection?A three-element thermal overload relay can protect motors of 2.2 kW or less from phase losses.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is the material of live-section covers for the types SC(SW)-03 to SC-N12 (including reversing types) ?Polycarbonate (PC), UL94V-0, heat resistance: 125℃.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is the concept behind the control power voltage range of SUPER MAGNET?Example: In the case of a 200 to 250 V, 50/60 Hz magnetic contactor
The lower and upper limits of the operational voltage range are 200 x 0.8 160 V and 250 x 1.1 = 275 V, respectively.
Thus, the operational voltage range is from 160 V to 275 V.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is the allowable coil voltage range of a magnetic starter (contactor)?The allowable coil voltage range is 85 to 110% of the rated voltage.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhen a magnetic contactor is horizontally mounted, to what extent will its mechanical switching durability decrease?The make/break durability of this contactor will decrease to approximately 80% of the durability when it is vertically mounted, which is the standard mounting direction.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat are the specifications of the surge suppression circuit of SUPER MAGNET?A magnetic contactor with a rated voltage of 200 V AC is provided with a 470 V varistor.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is the rated insulation voltage of a magnetic contactor?The rated insulation voltage of the new SC series is 690 V. That of the NEO SC series is 1,000 V.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat are the causes of coil burn-out in magnetic contactors?The causes of coil burn-out include (a) closing defect, (b) overvoltage, (c) application error of voltage or frequency, (d) excessive operating cycles per hour, (e) chattering, etc.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonPlease tell us about the contact resistance (initial value) of a magnetic contactor. In addition, are there any standards or criteria for determining contact defects?There are no criteria for determining contact defects of magnetic contactors.
However, JIS C 4531 "Contactor-type electromagnetic relays" (equivalent to auxiliary contacts of magnetic contactors) specifies that the contact resistance shall be 50 mΩ or less.
The initial values (at the time of shipment) of Fuji Electric FA’s magnetic contactors, including main contacts, are 50 mΩ or less.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is the difference between a magnetic contactor for high frequency and a standard-type magnetic contactor?A magnetic contactor for high frequency does not use iron around the main circuit to suppress magnetic induction heating. The parts other than the main circuit are the same as those of a standard-type magnetic contactor.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan a thermal overload relay be added to the secondary side of a CT to detect a large current?Yes, it is possible. Our large-capacity thermal overload relays also adopt this configuration.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan the auxiliary contacts of a thermal overload relay be used with different electric potentials (for example, by connecting the NC-contact to a 200 V AC sequencer and the NO-contact to a 24 V DC sequencer)?Yes, the auxiliary contacts can be used with different electric potentials. (However, models with a single c-contact, such as the TR-0, cannot be used with different potentials.)
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan an interlock unit (SZ-RM) be used between different models?An interlock unit can be used between SC-03 and SC-5-1, between SC-N1 and SC-N2 and between SC-N2S and SC-N3.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonTo what types can auxiliary contact blocks (front-mounting auxiliary contact blocks) be applied?Auxiliary contact blocks are applicable to types SC-03 to SC-N3.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonTo what types can auxiliary contact blocks (side-mounting auxiliary contact blocks) be applied?Auxiliary contact blocks are applicable to types SC-03 to SC-N3 and SC-N4 to SC-N12.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonHow can I set the product life counter?Cannot reset (return to 0).
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan a main circuit surge suppression unit be used in an inverter circuit?A main circuit surge suppression unit cannot be used in a circuit with many harmonics components, such as an inverter circuit, because of the possibility of a burn-out.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat is an interlock unit?An interlock unit mechanically interlocks two magnetic contactors coupled with each other.
A reversing-type interlock unit is easy to fabricate.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs a three-phase parallel terminal plate supplied with the main unit?Please place an order for a magnetic contactor main unit and an order for a three-phase parallel terminal plate separately.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs a surge suppression unit required for a coil drive unit for IC output?It is not necessary to additionally mount a surge suppression unit because the coil drive unit for IC output has a surge suppression function.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonCan a separate mounting unit be used for a thermal overload relay provided with quick connection terminals?They can be used in combination, but the power-side terminals of the separate mounting unit will not function as quick connection terminals.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs it possible to add a thermal overload relay to a reversing-type magnetic contactor later to use it as a reversing-type magnetic starter?A reversing-type magnetic contactor (SC-03RM to SC-N3RM) and a thermal overload relay, both separately prepared, can be used in combination.
(The reversing-type magnetic contactor will become available as a reversing-type magnetic starter.)
SC-N4RM and higher types cannot be provided with a thermal overload relay. The jumper wire (load side) for reversing switching differs between a magnetic contactor and a magnetic starter. In addition, jumper wires are not sold as single items.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs it necessary to prepare space for mounting a magnetic contactor?It is not necessary to prepare space for mounting the new SC series (SC-03 to SC-5-1) and the NEO-SC series (SC-N1 to SC-N12). The specified space is required for the NEW-SC series (SC-1N to SC-16N) and the NEO-SC series (SC-N14, SC-N16).
*For details, please see the catalog.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonWhat are the minimum load voltage and current values of the main circuit contact of a magnetic contactor?The minimum load voltage and current are 48 V and 0.1 A.
LV Distribution & Motor ControlMagnetic contactors, Magnetic startersStandard type magnetic contactor, magnetic starter, thermal relay, industrial relayCommonIs there any magnetic contactor that is applicable to 700 V DC?No, there isn't. SC- and SC-N magnetic contactors are applicable to up to 220 V DC, and SB-N magnetic contactors are applicable to up to 550 V DC.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesWhat kind of shape is the terminal screw for the compact twin F52C type?Both power source side and load side are equipped with M5 wire holding terminal.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesIs the N phase of the compact twin F52CN a short-circuit rod? Or Is any contacts there?N phase has a two-point cut structure with fixed contact and mobile contact.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesWhat is the dimension of applicable solderless terminals and wires for the compact twin breaker F52C type?R2-5-R5.5-5 for solderless terminals. When directly connecting wires,
φ1.6〜φ2.6 for single wire, 2-8sq for twisted wire.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesCan the compact twin F52C be mounted on the DIN rail?No. It cannot be mounted on the DIN. Use distribution board mounting plates FZ-PA and FZ-Pband to mount.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesDoes mounting posture give an impact on the compact twin F52C?Since the release method is thermal and electromagnetic type, there is no impact of the operation characteristics to the mounting posture.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesWhat is the purpose of the use of the handle cap BZ-CB1 for the compact twin F52C?To highlight the circuit to be recognizable at glance, put the cap on the handle unit. The cap is in red.
LV Distribution & Motor ControlMolded case circuit breakers/ earth leakage circuit breakersElectric distribution board breakersCompact TWIN seriesWhat is the purpose of the use of the handle lock cover BZ-LC1 for the compact twin F52C?The purpose is to prevent misoperation of the handle. Handle lock cover is in red.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesIn what quantities are the terminal covers CP-T1 and CP-T2 for the DP-31 and the CP-31D sold?These terminal covers are sold from 1 piece.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesAre the CP31 series and the CP31D series supplied with an attachment for embedding?The attachment for embedding is an option (type: CP-E1) and is not supplied with the main body.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesWhat is the purpose of CP-X2 (slider), which is an accessory for the CP31?The CP-X2 is a part for rail mounting.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesIs it possible to manufacture a three-pole unit of CP-D type?We do not manufacture three-pole units of the CP-D. Please consider using CP33F.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesIs there a UL standard-certified product in CP-D type?None of the units of CP-D type are UL standard-certified products. Please consider using CP-F type.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesCan CP31 type be mounted using a rail?The CP31 type is designed to be mounted with screws as the standard mounting method. When you wish to mount the CP31 type using a rail, designate "X" in the type number nomenclature.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesIs it possible to manufacture CP32D type with auxiliary and alarm switches?The CP32D type is provided only with an auxiliary switch as an accessory. We do not manufacture
alarm switches.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesWe wish to use two CP31s as a two-pole product. Can they be modified?There is no part that can join the handles from outside.
Please consider using the CP32D.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesWhat is the difference between the CP31 and the CP31D?The breaking capacity is different. The CP31 is 250 V AC:2.5 kA.
The CP31D is 250 V AC:1.0 kA.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesOnly the CP3D-series, CP31-series show the different change rate of the pick-up current when they are "mounted upside down" on a vertical surface. Why does it occur?Because the iron core in the oil dash pot of these products moves vertically. (The iron core of the other models moves horizontally.)
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesCan the CP-D type and CP31 type be horizontally mounted?The CP-D type and CP31 type can be horizontally mounted, but the rated current needs to be corrected.
*For details, please see the catalog.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesCan CP-D type be mounted on a panel?It can be easily mounted on a panel by using the optional accessory CP-E1.
LV Distribution & Motor ControlCircuit protectorsCircuit ProtectorsD seriesCan the CP32D be used with 120 V AC?The CP32D can be used at 250 V AC or below.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesDH seriesWhat do "Ict," "In" and "Ir" of the DH series mean?"Ict" is the maximum current value that can be set.
"In" is the rated current.
"Ir" can be considered as the "actual set current value" under the actual load.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesDH seriesIs "reverse connection" possible in general?Yes, it is possible.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesDH seriesWhat is the hot characteristic?The state in which an overload is produced in the start of operation from the stop state is called a "cold start characteristic," and the protective characteristic when an overload is produced with a load in operation is called a "hot start characteristic," and it operates the breaker in a shorter time than the cold start characteristic.
LV Distribution & Motor ControlLow Voltage FusesLow Voltage FusesDH seriesWhat does DB type "WHT" mean?In brief, "WHT" is a "trip coil."
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesWhich of the minimum or maximum current value of the adjustment range should be designated as the rated current code at the time of order placement?When placing an order, designate the maximum set current value as the rated current value. Note that this is different from thermal overload relays for which the minimum current value should be designated.
The dial is set at the minimum value before shipment.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesHow are the serial numbers of MMSs marked?A three-digit number starting with letters FD is marked on the lower left side of the main unit. For example, "649" means that the product was manufactured in the 49th week of 2006. (They don't use the YYYY-MM-DD format.)
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesAt what current level is the initial setting of the thermal dial of an MMS set at before shipment?It is set at the minimum value before shipment.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesI want to combine BM3RHB and SC-M02 and make it reversible. What sorts of parts and components do I need? One unit of SZ-MRM, one unit of mSZ-MRW, one unit of BZ0LRC09AA, A unit(s) of BZ0SET are needed.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesWe wish to combine the BM3RHB and the SC-E1 to make a reversing-type unit. Please tell us what parts are necessary.An SZ-ERW2/A, an SZ-ERW2/B, a BZ0LRP32AA, two BZ0BPRE32As, a BZ0BPCA, an SZ-RM, and two SZ-A11s are required.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesCan the internal type auxiliary contact block "BZ-0W1A" be mounted on the BM3RSB?The auxiliary contact can be mounted on either of the right or left sides. An alarm switch can be mounted only on the right side.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesIs a bracket for screw mounting supplied with the BM3RSB as a standard item?The bracket is an option. The bracket type is BZ0SET.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesIs there any option for an MMS that can trip the main unit of the MMS with an external signal?A shunt trip device (F) can trip the MMS.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesWhen the expected current is close to the boundary of the rated operational current setting range, which product should we select, one with higher rated current or one with lower rated current?Considering the additional installation of a load, etc., we recommend selecting a product with higher rated current so that your expecting value comes as the minimum rated operational current.
Example: When you wish to use a product supporting 0.63 to 1 A or a product supporting 1 to 1.6 A with 1 A, select the latter.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesWhat does the maximum operating frequency of the specifications mean?The maximum operating frequency means the number of manual switching times per hour.
LV Distribution & Motor ControlManual Motor Starters (MMS)Manual Motor Starters (MMS)DUO seriesPlease tell us about the material of the molded sections of the main unit.All of the outer sections that come into contact with users, such as the case and the cover, and the molded sections supporting the internal current-carrying sections are made of self-extinguishing UL94V-0 material.
DOWNLOAD CATALOG
MANUAL MOTOR STARTERS, CONTACTORS, AND COMBINATION STARTERS:
BM3 Series Catalog [USEH530B] (5MB)*CONTACTORS, MOTOR STARTERS, AND INDUSTRIAL RELAYS: 
(Orange Line / Odyssey Series) SC Series Catalog [USAH105G] (4.7MB)*
“Odyssey Series” Single Sheet Catalog [USAH106A] (144KB)
“SK Series” Mini Contactors & Thermal Overload Relays [62C1-E-0022] (5MB)*
“SK Series” Mini Contactors Leaflet” [KPNE1105] (4MB)MOLDED CASE CIRCUIT BREAKERS (MCCB):
“G-TWIN Series” [USEH240D] (4MB)*
“G-TWIN Lambda Series” [62D1-E-0117] (3MB)*
“G-TWIN Lambda Series Leaflet” [62D9-E-0111] (571KB)
“α-TWIN Series” [USEH235A] (2.2MB)
“EA-UL/SA-UL Series” [USEH605A] (1.8MB)
“G-TWIN” Flyer [USEH132A] (3.2MB)
“BU Series” [USEH602A] (5.3MB)
“BU-C Series” [EEH228A] (0.6MB)
EARTH LEAKAGE CIRCUIT BREAKERS (ELCB):
“G-TWIN Series” [USEH240D] (4MB)*
“G-TWIN Lambda Series” [62D1-E-0117] (3MB)*
“G-TWIN Lambda Series Leaflet” [62D9-E-0111] (571KB)
“α-TWIN Series” [USEH235A] (2.2MB)
“EG-UL/SG-UL Series” [USEH605A] (1.8MB)COMMAND SWITCHES (PUSH BUTTONS):
“Full Products Catalog” [USEH417a] (21MB)*
“Emergency Stop Pushbutton w/ Synchro-Safe Contacts Leaflet” [62E9-E-0148] (3MB)
“AR16, AF16 Series” [AEH315A] (7.3MB)CIRCUIT PROTECTION DEVICES:
Earth Leakage Relays “EL Series” [USAH108A] (116K)
“CP30F Series Redesign” Leaflet [62D9-E-0174] (1.2MB)* = Current catalog
TUTORIAL VIDEOS
ENGLISH SPANISH
Circuit Breakers Tutorial 
This training module provides a comprehensive view of Circuit Breakers. The training module can be accessed via this link: Circuit Breakers Tutorial

 Run time: 4 min, 30 sec
Interruptores
Este módulo de capacitación  ofrece una visión completa de interruptores automáticos. Este módulo se puede acceder a través de este enlace: Interruptores

 Run time: 4 min, 21 sec
Contactors Tutorial 
This training module provides a comprehensive view of Contractors. The training module can be accessed via this link: Contactors Tutorial 

 Run time: 5 min, 41 sec
Contactores y Reles
Este módulo de capacitación ofrece una visión completa de contactores y reles termicos . Este módulo se puede acceder a través de este enlace: Contactores y Reles

 Run time: 6 min, 42 sec
Manual Motor Starters Tutorial 
This training module provides a comprehensive view of Manual Motor Starters. The training module can be accessed via this link: Manual Motor Starters Tutorial

 Run time: 2 min, 13 sec
Arrancadores de Motores Manuales
Este módulo de capacitación ofrece una visión completa de Arrancadores de Motores Manuales. Este módulo se puede acceder a través de este enlace: Arrancadores de Motores Manuales

 Run time: 2 min, 53 sec
Push Buttons Tutorial 
This training module provides a comprehensive view of Push Buttons. The training module can be accessed via this link: Push Buttons Tutorial

 Run time: 3 min, 23 sec
Botones de Comando
Este módulo de capacitación ofrece una visión completa de botones de comando. Este módulo se puede acceder a través de este enlace: Botones de Comando

 Run time: 4 min, 07 sec
DOWNLOAD TECHNICAL REFERENCE / SOFTWARE
MANUAL MOTOR STARTERS
CAD DATASC-M/SC-E SERIES CONTACTORS
CAD DATACOMBINATION STARTERS
CAD DATAORANGE LINE / ODYSSEY SERIES
CAD DATA 
Terminal Cover Constructions (1.7MB)
Cross Chart from Old Contactor to Latest Contactor (34KB)EARTH LEAKAGE CIRCUIT BREAKERS (ELCB):
CAD DATASK SERIES CONTACTORS & RELAYS
CAD DATAMOLDED CASE CIRCUIT BREAKERS:
“G-TWIN Series” CAD DATA
“EA-UL/SA-UL Series” CAD DATA
Discontinue Notice for UL489 BU Series
DOWNLOAD DECLARATION / CERTIFICATE
EC DECLARATION OF CONFORMITY  
MOTOR CONTROLS:
“Orange Line Series” (388KB)
“Odyssey Series” (388KB)
“Manual Motor Starters” (52KB)
“SC-E Series” (56KB)COMMAND SWITCHES:
“Push Buttons” (180KB)
“Selector Switches” (180KB)
“Pilot Lights” (180KB)ISO CERTIFICATE
ISO9001:2008 (JISQ9001:2008) (79KB)
ISO14001:2004 (JISQ14001:2004) (129KB)RoHS CERTIFICATE
All D&C Products (442KB)
G-Twin Series RoHS Compliance List (95KB)
CIRCUIT PROTECTION DEVICES:
“Molded Case Circuit Breakers” (660KB)
“MCCB BW(G-TWIN)” (320KB)
“Earth Leakage Circuit Breakers” (310KB)
ELCB EW (G-TWIN)” (249KB)
“Earth Leakage Relays” (672KB)
“Circuit Protectors” (208KB)OTHERS:
“Control Relays” (44KB)
“Timers” (92KB)
DISCONTINUED PRODUCTS
CP-F SERIES CIRCUIT PROTECTOR
Discontinue Date: End of May, 2016
Replacement Products: Click here to download Discontinue Notice Letter (892KB)AS-Interface devices
Discontinue Date: July 31, 2014
Replacement Products: None
Click here to download Discontinue Notice Letter (116KB)SJ SERIES
Discontinue Date: September 15, 2012
Replacement Products: Click here to download PDF FILE (556KB)SC-M SERIES
Discontinue Date: March 26, 2012
Replacement Products: Click here to download PDF FILE (556KB)ALPHA-TWIN SERIES & PARTIAL BU SERIES BREAKERS
Discontinue Date: September 30, 2010
Replacement Products: Click here to download PDF FILE (69KB)SUPER 60, TWIN BREAKERS, NON-UL AND UL PRODUCTS (EA/SA*B, EG/SG*B)
Discontinue Date: June 30, 2008
Replacement Products: Click here to download PDF FILE (35KB)TWIN BREAKERS, NON-UL PRODUCTS AND THE ACCESSORIES (EA/SA + EG/SG)
Discontinue Date: March 31, 2006 for 50, 100 and 225 amp frame size June 30, 2006 for 30-100 amp frame size
Replacement Products: Click here to download PDF FILE (64KB)

UL489 MCCB BU SERIES (ESB/FSB/FHB AND ACCESSORIES)
Discontinue Date: June 30, 2002
Replacement Products: Click here to download PDF FILE (76KB)

SJ-1SG CONTACTORS & MOTOR STARTERS
Discontinued Date: December 31, 2015
Replacement Products: None
Click here to download Discontinue Notice Letter (1.73MB)