The new ground power unit GPU-4140 is a diesel-powered generator that provides regulated 140kVA, 400 Hz, 115/200 VAC, 3-phase, power to aircraft. with the 28.5 VDC rectifier option, the unit provides power to aircraft that need 28 VDC at 500A continuous and 2000 A peak. The unit is portable, easy to maintain and durable with uncompromising performance. View the New ground power unit specs here.