Motor Switch Amps AC 20 A Max Voltage 600V AC Enclosure NEMA Rating 7 9 Hub Style Dead-End Hub Size 1/2 in Description/Special Features (2) 1/2 in Hubs on Opposing Ends No of Thermal Units Required None Number of Poles 2 Starter Type Manual Height 6.8125 in Width 3.6875 in Depth 5.3438 in HP @ 1 Phase - 115V 2 hp HP @ 1 Phase - 230V 2 hp HP @ 3 Phase - 200V 7 1/2 hp HP @ 3 Phase - 230V 7 1/2 hp HP @ 3 Phase - 460-575V 10 hp