Motor Starter Amps AC 20 A Enclosure NEMA Rating 3 7CD 9EFG Hub Style Feed-Thru Hub Size 1/2 in Number of Gangs 1 Description/Special Features Cast In Hubs. Interchangeable Heater Units. No of Thermal Units Required 1 Number of Poles 1 Starter Type Manual Height 7.03 in Width 3.72 in Depth 5.31 in HP @ 120V 1 hp HP @ 240V 1 hp HP @ 32VDC 1/4 hp HP @ 240VDC 1/4 hp HP @ 230VDC 1/4 hp