Dual INF surface mount control assemblies with weatherproof box for exposed exterior locations. for 240 volt applications must use this item. Includes gang box, stainless steel face plate, and weatherproof box. 15 amp maximum load. The INF input regulator is considered an Infinite Switch . It operates with a bi-metal contact. It pulses the heater on and off as the internal contact heats up or cools down. It is considered a coarse form of control and is commonly used for electric heaters. Features 15 amp maximum load per switch. For 240 volt applications. Stainless Steel Faceplate. UL Listed. 2 Year Warranty. Specifications Overall Dimensions 4.38 W x 4.38 H . Weatherproof box 4 1/2 h x 4 1/2 w x 2 1/8 d. SS Plate 4 3/8 h x 4 3/8 w. Weatherproof Cover 5 1/2 h x 5 1/2 w x 2 3/4 d tab on cover extends 1/4 . Threaded Knock Out 3/4 .