Intermatic Timer Switch, Electro Mechanical, Series: T100, 125 V AC, 40 A, 5 hp, 1 Pole, 1NO 1 Form A SPST Contact Form, 24 hr Time Setting, Teeter Electrical Connections, NEMA 3R Enclosure, -40 to 130 deg F, Wall Mounting, 5-1/2 in L x 3-3/8 in W x 9-3/8 in H Dimensions