2007 Ground power unit GPU/120 KVA 4120-T-CUP

The TLD GPU-4120-E-CUP 400 Hz Ground Power Unit features a brushless revolving field generator, rubber torsion axle-mounted chassis of rugged galvanized steel construction with fifth wheel steering and powder-coated sheet metal panels. The unit meets U.S. and EURO emission standards.


The GPU-4120-E-CUP is available with an optional 28.5 volts DC power output package, part number GPU-4120-E-CUP-28. The 28V option creates outputs for a 120 kVA 400 Hz AC and 28V DC combination aircraft ground power supply.


24 volt starting motor

Heavy-duty spark arrestor/silencer

Pusher type fan

Full-flow lubricating oil filter

Dry-type air cleaner

(2) 12-volt batteries

Full flow fuel filter

De-aerator tank

Low coolant shutdown

400 Hz 115/200 volts nominal

+/- 15% adjustable

3 phases

4 wire wye-connected

Grounded neutral

Revolving field

Brushless

Self-cooling

Single bearing

Brushless rotating rectifier assembly

Directly connected to the engine