239 931

Nominal Input Voltages 24 to 110 Vdc
Range of Input Voltage 17 to 138 Vdc
Efficiency > 90 %
MTBF 53 years
Length 264 mm
Width 195 mm
Height 238 mm
Weight 8.5 kg
Output Voltage 48 V square-wave
Nominal Power Output at 24 V 500 W
Nominal Power Output at 36 to 110 V 500/1000 W
Isolation Voltages Housing to Input/Output 2.1 kVdc
Isolation Voltages Remote Indication to Housing Input/Output 2.1 kVdc
Vibration Resistance IEC 571
  • The central square-wave power supplies belongs to the family of DC/AC converters without galvanic isolation.
  • They are available for nominal input voltages of 24 to 110 V and are suitable, among other things, for supplying power to GTO drive units (Gate-Units).
  • The output voltage is a square-wave (f = 16 kHz) voltage of ± 48 V. Depending on the model selected, these units pro vides a power output of 500 W or 1000 W.
  • The power from the supply (the vehicle battery) is introduced to the intermediate d.c. link circuit across a step-up or a step-down chopper, and from there to the output across a full-bridge inverter.
  • All units also contains extensive monitoring and test equipments.
  • No unit is released for delivery until after it individually has passed numerous tests and inspections, including a burn-in lasting several days, thereby ensuring consistent excellence of the units.