Auxiliary power supply converter


KONTRAC PN25DC is used as the auxiliary power supply converter in tramways. It converts 600 VDC or 750 VDC line voltage into three-phase AC voltage intended for supplying of tramcar’s air-conditioning unit.


  • Input line voltage 600 VDC or 750 VDC
  • Latest IGBT technology
  • Galvanic insulation input / output
  • High-frequency resonant converter
  • Easy maintenance
  • Light and compact design
  • Roof mounting
  • Extended ambient temperature range from -40 °C to +40 °C

Basic technical data

Input voltage 600 / 750 VDC
AC output 3 x 400 V, 50 Hz, 30 kVA
Cooling Forced air-cooling
Size 1560 x 605 x 520 mm
Weight 246 kg
Mounting position Roof
Connecting interface CAN / MVB / Ethernet
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