GPU 400 - 28.5V DC Hobart Ground Power Unit (GPU-400)

GPU 400 – Hobart Ground Power Unit – 28.5V DC @ 1600 amps

The GPU 400 is the most reliable 28.5V solid state GPU in the industry!

GPU-400 Ground Power Unit

The Hobart GPU 400 Solid State ground power units provide precisely regulated 28.5 volt DC service. These reliable solid state GPU’s are equipped for engine starting in the current limiting “soft start” mode recommended by most airframe manufacturers. Specifically developed in response to customer needs, the GPU-400 and GPU 600 supply the fully regulated, dependable power required by today’s more demanding aircraft.

The GPU 400 delivers 400 amperes continuous to 1600 amperes peak for starting. Hobart GPU 400 Series units…Reliable power for your aircraft!

Performance Features:

  • Output DC voltage independent of ±10% input voltage variations
  • Output current limit setting is adjustable over the range of 150 to 1600 amperes
  • Output terminals safely located inside case
  • NEMA 3R Enclosure
  • Separate input and output contactors with status indication lights
  • Protective recessed control panel
  • Convenience receptacle for lights, electric drill, or test instruments
  • T-handle 3-wheel mounting with activated parking brake provides easy maneuverability and stable parking
  • Laminated control panel overlay for long life of lettering
  • 20 foot DC cable

Options:

  • Cable Tray Kit
  • CE Kit
GPU 400 Specifications
Performance 500160-401 500160-402 500160-403
Supply Voltage, 3-phase, Reconnectable 208/230/460 220/380 230/460/575
Full Load Input Current 56/52/26 56/32 52/26/22
Frequency 60 Hz 50 Hz 60 Hz
Nominal Output Voltage 28.5 VDC 28.5 VDC 28.5 VDC
Optional Output Voltage 14.25 VDC 14.25 VDC 14.25 VDC
Output Voltage Regulation @ 100% ±10% input line voltage variations ±.05% ±.05% ±.05%
Amperes Continuous 400 400 400
Amperes Starting with Current Limiting 150 to 1600 150 to 1600 150 to 1600
Ripple Below the Limits of Mil-STD 704D Yes Yes Yes
Convenience Receptacle 10A, 115V, 60Hz 10A, 220V, 50HZ 10A, 115V, 60H
GPU 400 Dimensions
Model Length (Overall) Width (Case) Width (Overall) Height (w/o Cable Tray Weight (Dry)
Portable Models 46.5″ (118.1 cm) 24″ (60.9 cm) 33″ (83.8 cm) 33″ (83.8 cm) 750 lbs. (340 kg)
Stationary Models 34″ (86.4 cm) 24″ (60.9 cm) 24″ (60.9 cm) 29″ (73.7 cm) 700 lbs. (318 kg)