FW28-PS30-PS50 --- 28V Combined Power Supplies & Chargers

  • Product Description

    Flywell Power's PS30M and PS50M miniature power supplies are lightweight combination charger / power supplies able to deliver 30 or 50 A depending on model, at a pre-set voltage between 28 and 31.5 V (for 28 V charging) as selected by the operator. Power supplies can be connected directly to the aircraft's external ground power receptacle or to any of FWP's portable starter GPUs.

    The PS30M / PS50M are designed for operators of smaller helicopters and VLJs needing to download data or program avionics in any location where size and weight are important.

    The auto selecting 120 / 240 V, 50 / 60 Hz input allows international use. A solid state voltmeter displays the output voltage when the unit is operating. Coloured LEDs confirm mode selection. A green and red LED indicates amperage below or above current limit protection.

    Unique to the PS30M / PS50M are two pre-set voltages enabling the power supplies to charge both 24 V and 28 V portable GPUs or operate in parallel with them. Specification includes forced ventilation with thermal protection and current overload / short circuit and reverse polarity protection.

    A quick-release polarized 50 A continuously rated connector allows instant connect / disconnect of the 2 m special double insulated 16 mm section output cable fitted with Lexan Nato plug.

    The design allows units to be ganged in parallel to a second power supply to double output or to operate in parallel with any START17, 29 or 58 GPU as a continuous power source or charger.

    A single voltage unit (28.5 V) is also available in this range (FW28-PS30 / PS50).


    • Options

      � Mains input voltage selector.
      � Digital voltmeter.
      � Mains on / off switch.
      � Current limit LED.
      � Power output status LED.
      � Padded protective jacket.
      � 2 m detachable output cable with fitted Lexan Nato plug.


  • FW-28 PS50 FW-28 PS30

Technical Specifications *

  • Maximum output current
  • Output voltage
  • Input voltage
  • Max input current
  • Input frequency range/li>
  • Efficiency
  • Cooling
  • Ambient temperature range
  • IP Rating
  • Dimensions(mm) (L*W*H) -- FW28-START29
  • Weight -- FW28-START29
  • Dimensions(mm) (L*W*H) -- FW28-START58
  • Weight -- FW28-START58
  • Application
  • FW28-PS30 : 30 A; FW28-PS50 : 50 A
  • 28.4 V, 31.5 V (selectable)
  • Auto. 120 / 240, single phase 50 / 60 Hz
  • 120 V, 15 A; 240 V, 7.5 A (PS50)
  • 45 - 400 Hz
  • 90%
  • Forced air, Single Fan
  • -20°C to +50°C
  • IP54
  • 150 * 325 * 95
  • 3 kg
  • 155 * 350 * 140
  • 6 kg
  • Designed for the smaller helicopter, VLJ or use with START17, 29 and 58 GPUs or as a DC power source