Safety Switch, Contact Form 3PST, Current Rating 400 A, Depth 10 1/4 in, Duty Heavy Duty, Environment Indoor, For Fuse Class Not Applicable, Height 50 1/4 in, Horsepower @ 240V AC 125 hp, Horsepower @ 480V AC 250 hp, Horsepower @ 600V AC 350 hp, Housing Material Steel, IP Rating IP20, Mounting Style Surface Mount, NEMA Enclosure Rating 1, Neutral Assembly Included No