Safety Switch, Contact Form DPST, Current Rating 60 A, Depth 8 1/2 in, Duty Heavy Duty, Enclosure Type Enclosed, Environment Indoor, For Fuse Class Class H, Class J, Class K, Class R, Fuse Kit (Class R) Mfr. No. HRK4060, Height 17 1/2 in, Horsepower @ 240V AC 50 hp, Horsepower @ 600V AC 25 hp, Housing Material Steel, IP Rating IP20, Mounting Style Surface Mount, NEMA Enclosure Rating 1, Neutral Assembly Included Yes, Number of Mounting Holes 3