Intermatic FF312H SPDT 12Hour Timer With Out Hold

The Intermatic FF312H is a mechanical timer that is used to switch on and off devices for up to 12 hours. It is an SPDT switch that enables it to switch the power between two circuits with ease. Unlike conventional timers, the FF312H is spring loaded and does not need electricity to function, which makes it an energy efficient product. You only need to turn the dial to set the time you want it to be on, up to 12 hours and it will turn off when the time elapses. This timer is well suited for use in lighting control, fan control, heater control and any other electrical appliances. In HVAC systems, it can be used to open or close the ventilation cycles or to open the exhaust fans for certain times.