UNILETS GUSC Series Heavy-Duty Tumbler Switch, Voltage Rating: 600 VAC, Amperage Rating: 30 AMP, Number Of Poles: 2, Enclosure: NEMA 7D, 9EFG, Mounting: Surface Mount With 3/4 IN Feed-Thru Hub, HP Rating: 3 HP At 240 VAC, 7-1/2 HP At 480 VAC, 10 HP At 600 VAC, Material: Malleable Iron Body, Copperfree Aluminum Cover, Finish: Body: Triple-Coat (Zinc Electroplate, Chromate And Epoxy Powder Coat), Cover: Natural, Height: 4.63 IN, Width: 4.19 IN, Depth: 3.94 IN, Standard: Class I, Division 1 And 2, Group D, Class II, Division 1 And 2, Groups E, F, G , Class III, For Controlling Motors And Other Apparatus