Motor Starter Amps AC 20 A Enclosure NEMA Rating 3 7CD 9EFG Hub Size 3/4 in Description/Special Features Interchangeable Heater Units. No of Thermal Units Required 1 Number of Poles 1 Starter Type Manual Height 6.06 in Width 3.72 in Depth 1.5 in HP @ 120V 1 hp HP @ 240V 1 hp HP @ 32VDC 1/4 hp HP @ 240VDC 1/4 hp HP @ 230VDC 1/4 hp