-Rating (kVA): 375 -Rating (kW): 300 -Voltage Selector Switch: 3 Phase: 480/277V, 3 Phase: 240/139V, 1 Phase: 240/120V -Standby 3PH: 300kW(375kVA), 0.8 P.F. -Standby 3PH: 120/208V(1040.9A), 139/240V(902.1A), 277/480V(451.1A) -Standby 1PH: 201kW(201kVA), 1.0 P.F. -Standby: 1PH, 120/240V(837.5A) -1200 Amp Square D PJ 1200 Circuit Breaker