Used RedBox RBPS75 - 75 Amp Output / 14V / 28V DC GPU

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The RedBox RBPS75 is a compact, lightweight and highly portable power unit. Designed to give continuous high-quality DC power for crew training, aircraft servicing in the workshop, on the ramp or in the field. This continuous power supply is ideal for diagnostic work, pre-flight checks or for continuous powering of equipment during operations, without draining the onboard aircraft batteries. There is a range of built-in safety features and the units are easy to use. This switchable unit will produce a steady 14.4 or 28.8 Volts up to the fully rated output current with power factor correction.

The power supplies are multi fan-cooled with inbuilt thermal management for operation up to 50°C ambient environments. The safety features include over current and short circuit protection. The power modules conform to EMC standards for noise emissions and immunity. Delivered as standard this unit is supplied with a 2m heavy duty lead, fitted with a 3 pin NATO connector for direct aircraft connection.


  • Direct connection to aircraft or land vehicle
  • Rugged steel case
  • Fan cooled
  • User switchable between 14V and 28V


  • Overload
  • Over Voltage
  • Over Current
  • Short Circuit

Safety & EMC

  • EN60950-1: 2006
  • Emission – EN55022-B
  • IEC 335-2-29


  • Output Current: 75 amps
  • Output Voltage: 14.4 or 28.8 VDC
  • Output Ripple: <250 mV
  • Input Frequency: 45 - 65 Hz
  • AC Input Supply: 95V - 270 V
  • Phase: 1
  • Power Factor Correction: Included
  • Input Rating: 2640 VA
  • Operating Temp: 0° to +50° C
  • Dims Body: (cm)(L) 52 x (W) 26 x (H) 21
  • Weight: Kg15Kg / (nominal)
  • Plug Selector: UK240V 13A (STANDARD MAINS)
  • Plug Selector: USA110V 30A
General Information
Part #RBPS75
ManufacturerRed Box
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