Auxiliary Power Supply (APS) System

Fuji Electric provides high efficiency and economical auxiliary power supply (APS) systems for passenger railcars. Fuji’s APS are designed to provide high reliability and easy maintenance.


Large Capacity APS for DC Cars with 3-Level Inverter

  • Less acoustic noise and less EMI with 3-level inverter
  • Larger capacity with small size

Small Size and Light Weight APS for Small Cars

  • Medium frequency isolation system with forced-air cooling makes equipment smaller and lighter

Ultra High Reliability APS with Stand-by Power Unit

  • APS with stand-by spare power unit. If the power unit fails, the equipment switches to the stand-by power unit and continue to supply auxiliary power