Bryant Electric, 4903RKL, Keylock Switch, 3-Way 2-Position Extra Heavy Duty General Purpose Specification Grade Security Locking Standard, 120/277 VAC, 20 A, 5540 W Power, Inductive/Resistive, Cylindrical Lock, Key Operated Actuator, Back and Side Wired/Screw Terminal Connection, Dot Indicates ON Indicator, Threaded Mounting, Composite, Chrome, Environmental Conditions: -40 to 75 deg C Operating Temperature/UL 94 V-2 Flammability Rating, 4.06 in H x 1.25 in W Dimensions,