JFP Cummins 62.5KVA/50KW Marine Diesel Generator 60Hz Three-Phase Open Type With Emergency Sea Water Pump Heat Exchanger Product Overview This 50kW (62.5kVA) open-type Cummins marine emergency diesel generator set adopts genuine Cummins 4BTA3.9-GM65 marine engine matched with tropicalized STAMFORD UCM224E brushless alternator, complying with marine power specifications. Equipped with seawater heat exchanger cooling system, it is specially designed as emergency power supply