Lightweight 28V DC power supply, fitted with solid state voltmeter and ammeter, capable of providing 300A continuous power for avionics use.

  • 300A / 28V DC continuous power
  • Solid state voltmeter
  • Solid state ammeter
  • Lightweight aluminium case with handle
  • Short circuit / current limit protection
  • Emergency stop push button
  • Power supply LED status indicators
  • Rubber, anti-slip, shock absorbent feet

Product Information

Product Information

The PS300 is a solid state hand-portable power supply delivering a maximum of 300A at a pre-set voltage of 28V DC for avionics use. The unit can be connected directly to the aircraft’s external ground power receptacle and is primarily for regional airline operators of turbine and turboprop DC aircraft or MROs requiring continuous power for maintenance. It is also used to power large DC aircraft at air shows.

The unit is compact, lightweight and able to power air conditioning on most business jets and can be placed under the fuselage or wing of small aircraft or helicopters, freeing up hangar floor space.

The PS300 is fitted with three 100A power supplies connected in parallel. Power supply healthy LEDs are fitted to the front panel for diagnostics. When pressed, the emergency stop button immediately disconnects power to the aircraft. The front-mounted quick-disconnect output connector allows leads of different configurations to be instantly connected to the unit.

Key-switch input voltage selection allows operation at either 180–264V AC three phase or 311–457V AC / 47–63Hz three phase for international use. A solid state voltmeter and ammeter displays the output voltage and current, enabling operators to monitor the current draw of avionics and other pre-flight loads. Supplied with Nato lead set, input lead and heavy-duty canvas protective jacket. .

Supplied with:

4m Nato Lead

4m Nato Lead

Hard Wired Mains Lead

Hard Wired Mains Lead

Padded Jacket PS300

Padded Jacket

Optional Extras:

Double Trolley

Double Trolley

Rechargeable Inspection light

Rechargeable Inspection Light

GA Pack GA Pack GA Pack

All Features

Product information

  • Main on/off switch
  • Power supply LED status indicators
  • Short circuit / current limit protection
  • Emergency 'stop' push-button
  • Corrosion resistant aluminium case with carry handles
  • Replaceable / washable air filters to allow outside use
  • Harsh environment input cable with plug
  • Solid state voltmeter
  • Solid state ammeter
  • Fitted with rubber anti-slip shock absorbent feet
  • Heavy duty canvas protective jacket

Technical Specs

Technical Specifications

Output voltage 28V DC
Output current 300A
Output ripple <200mV p-p
Input voltage 1 311V - 457V AC / 47-63Hz three phase + neutral + earth
Input voltage 2 180V - 264V AC three phase + earth
Input current 16A @ 400V AC / 32A @ 200V AC / three phase (typical)
Operating temp -20C to +50C (-2F to +122
Case Aluminium with shock absorbing feet
Voltmeter / ammeter Solid state LED, IP65
Aircraft cable 2m (6ft) with heavy duty rubber Nato connector
Input cable 3m (10ft) with 32A 5-pin 6h red plug
Cooling Forced ventilation
Protections/td> Thermal, current overload, short circuit, over voltage
Dimensions L 450mm (18in), W 295mm (11in), H 345mm (13in)
Weight 20kg (44lb)


Powervamp DC Ground Power Aviation Showcase

The following video has been created to showcase a small selection of aviation products from our DC range of GPU's. See the video below for a look at the aviation showcase.

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