The SW15MK is a single pole, single throw energy saving timer that uses no electricity to operate. Designed to replace any standard wall switch, single or multi-gang, and automatically limit the ON time of fans, lights, motors, heaters and other energy consuming loads. Has a time limit of 15 minutes. This unit is supplied with a gray molded plastic wall plate. An exclusive up front terminal connection with teeter type terminals and an easy press-on knob design ensure quick and easy installation. CSA certified. Resistive (heater): 20 Amp, 125 VAC, 10 Amp 250/277 VAC. Tungsten: 7 Amp 125 VAC. Motor: 1 HP, 125 VAC, 2 HP, 250 VAC. 50/60 Hz. Color: Gray/Plastic. Material: Thermoplastic.