Electromechanical Timer, 24-Hour, Number of Poles 1, Contact Form SPST-NO, Voltage 208 to 277V AC, Amps 40 A, Contact HP @ 120V 2 hp, Contact HP @ 240V 5 hp, Day Skipper No, Enclosure Type Steel, Finish Gray, NEMA Rating 1, Min. Time Setting 1 hr, Max. Time Setting 24 hr, Max. On/Off Cycles 12, Width 5 in, Depth 3 in, Height 7 3/4 in, Number of Trippers Included 2, Extra Trippers 2E054, Operating Temp. -40 to 130, Description/Special Features -, Mount Keyhole, Standards C22.2--177, LR3730, UL917