Description. 200kW Natural Gas Cummins enclosed generator set powered by a Cummins GTA-855 engine, floor ran tested at 480V, 60Hz, 1800rpm, 3 phase, 365 hours on meter, 400amp breaker, Engine serial number: 25167290, Dims: 11.4' L, 5.5' W, 9.2' T. Additional Prep Fees May Apply.