Used Unitron GFC-37M 400 HZ AC GPU

Unitron GFC-37M
Unitron GFC-37MUnitron GFC-37MUnitron GFC-37MUnitron GFC-37MUnitron GFC-37MUnitron GFC-37MUnitron GFC-37MUnitron GFC-37MUnitron GFC-37M
Manufacturer: Unitron
Part Number: GFC-37M
Lead Time: Sold (but we get Unitron stock in all the time)
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The used / refurbished GFC-37M is a 400 HZ AC aircraft ground power unit with 37 kVA output.

Standard Features

  • MIL-STD-704E, ARP 5015, DFS 400 and ISO 6858 Compliant
  • Indoor/Outdoor (Hangar/Ramp) Use
  • Automatic Input Line Monitoring
  • Automatic Line Drop Compensation (ALDC)
  • Emergency Mushroom "OFF" Switch
  • 18-Inch Hazard Area Clearance
  • Automatic Aircraft Safety Disconnect
  • Built-in Maintenance Diagnostics
  • Analog Control Panel
  • Output Voltage and Current Monitoring
  • Internal Elapsed Time Meter
  • Front Panel Summary Fault Indicators
  • Solid Cushion Tires
  • Built-in Cable Racks, Input & Output

Output Specifications

  • Power Rating: 37.5 kVA Output to Aircraft
  • Overload: 150% for 5 min., 200% for 20 sec.
  • Voltage: 115/200 volts, 3, 4 wire, grounded neutral
  • Voltage Regulation: +/- 1.0% under all conditions of line, balanced loads and temperature
  • Voltage Transients: IAW MIL-STD-704E
  • Frequency Regulation: 400 Hz +/- 0.01% under all conditions of line, load and temperature
  • Frequency Transients: None
  • Phase Angle Regulation: +/- 2 degree for balanced loads
  • Harmonic Distortion: 2.0% maximum
  • Protection: Overload, short circuit, over/under voltage and safety disconnect

Energy Factors

  • Efficiency: 93% typical at full load, 91% typical at half load; varies depending on configuration
  • Energy Efficiency Ratio: 20.0 typical


  • Acoustical Noise: 65 dBA maximum at 5 feet
  • Temperature Range: -40 degree C to +55 degree C


  • 37.5 kVA = 750 lbs. (340 kgs.)

Equivalent to:

This unit is equivalent to new Unitron UFC-45M, GFC-45M, and UFC-37M.
Compatible Aircraft*
Bombardier (Business)Challenger 600, Challenger 601, Challenger 604, Challenger 850, Challenger 870, Challenger 890, Global 5000, Global Express
Bombardier (Regional)CRJ100, CRJ1000, CRJ200, CRJ700, CRJ900, Dash 8-100, Dash 8-200, Dash 8-300, Dash 8-400
Fokker28, 50, 70
GulfstreamG350, G450, G500, G550, G650, II, III
*This list is for general reference only and may not be entirely acurate for all aircraft. Please confirm all equipment meets the requirements of your aircraft with the owners/maintenance manuals prior to purchasing or using with your aircraft.