These energy saving timers use no electricity to operate. These timers are designed to replace any standard switch, single or multi-gang, and automatically limit the “ON” time of fans, lights, motors, heaters, and other energy consuming loads. Available in 15 or 30 minute max on time in both SPST and DPST configuration. Switch Rating— Each pole:1 hp @ 115 volt; 2 hp @ 230 volt. An electronic version also available with 500 watt switch rating.
 

15 minute spring wound timer, SPST

30 minute spring wound timer, SPST

15 minute spring wound timer, DPST

30 minute spring wound timer, DPST

15 minute 115 volt, 500 watt electronic interval timer