Drum Switch, Switch Action Maintained, Momentary, Phase Single, Reversing Capability Reversing, Horsepower @ Three Phase - 240V AC 5 hp, Horsepower @ Three Phase - 480V AC 7 1/2 hp, Maximum Voltage Rating 250V DC, 600V AC, Terminal Connection Type Screw Clamp Terminals, Horsepower @ Single Phase - 120V AC 1 1/2 hp, NEMA Enclosure Rating 1, Number of Poles 3, Horsepower @ Single Phase - 240V AC 3 hp, Standards CSA Cetrified, UL Listed, Overall Width 2.68 in, Overall Depth 4.61 in