Motor Switch, Current AC 30 A, Hazardous Location Specification Class I, Div 1 and 2, Group C, D, Class II, Div 1 and 2, Group E, F, G, Class III, Div 1 and 2, Horsepower @ Single Phase - 120V AC 3 hp, Horsepower @ Three Phase - 240V AC 7 1/2 hp, Horsepower @ Three Phase - 480V AC 15 hp, Horsepower @ Three Phase - 600V AC 15 hp, Includes Pilot Light Yes, Number of Poles 3, Operator Handle, Phase Three, Starter Style NEMA, Terminal Connection Type Screw Terminals, Hub Diameter 0.75 in