Product Description Mechanical Timer, Spring Wound, Timing Range 0 To 30 Minutes, Contact Form Dpst, Hp @ 120V 1, Hp @ 240V 2, Load Capacity @ 125V 20 (Inductive)/7 (Tungsten) Amp, Load Capacity @ 250V 10 Amp, Load Capacity @ 277V 10 Amp, Faceplate Color Silver, Fits Single-Gang Box, Knob Included, Ul Listed (E76987), Csa Certified (Lr3730) From the Manufacturer These energy saving timers use no electricity to operate. These timers are 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. Supplied with a molded white time dial plate designed to fit either toggle or decorator style switch plates; single or multi-gang with no field modifications required to fit either style switch plate. Time saving "up front" terminal connection with teeter type terminals and an easy "press-on" knob design ensure quick and easy installation.