The FFU Series Commercial Auto-Off Timers Are Designed To Replace Any Standard Wall Switch. This Series Of Energy-Efficient Mechanical Timers Do Not Require Electricity To Operate. The Commercial ''Brushed Metal'' Look (Plastic Construction) Meets Nec Requirements. In Addition, They Automatically Limit The On Times For Fans, Lighting, Motors, Heaters, And Other Energy Consuming Loads. Fits Standard 2-1/2'' Deep Wall Box Single Or Multiple Ganging With Standard Wall plates Electrical Ratings: Resistive 20 Amps 125V; 10 Amps 208/277V; Tungsten 7Amp 125V Motor 1 Hp 120Vac, 60 Hz; 2 Hp 250 Vac, 60 Hz Rugged Time Dial Plate Easily Withstands The Abuse Encountered In Commercial Environments Press-On Knob Design Ensures Quick & Easy Installation 2.79''H X 1.6''W X 1.19''DMade in: United States Dimensions: 7 X 2.5 X 4Brand: Inerratic IncItem Weight: 0.301includes: Unit Instruction Guide
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.