Wiring Device-Kellems HBL® Industrial Locking Switch, Extra Heavy Duty, 120 to 277 VAC, 15 A, 2 hp, Toggle, Threaded, Back and Side Wired Terminal, 50000 Operating Cycles, Thermoset, White, Environmental Conditions: -40 to 75 deg C Operating Temperature, 3.28 in H x 1.25 in W x 1.13 in D