camperpaul wrote:
Dutch_12078 wrote:
I don't know just how long you want the fan to run, but this typw of mechanical switch should work:
GE 15-minute Auto Shut-Off Switch
First the disclaimer:
In the 1980s, I worked for Intermatic as the Chief Electronics Mfg Engineer and Chief Test Engineer.
That GE timer is almost identical to the clock-spring timers made by Intermatic. They are available in various versions with different run-times, from 5 to 60 minutes.
Because they do not require electrical power to operate they are perfect for your application.
They can be used for switching any voltage from 6 to 240 Volts AC or DC. The contacts are rated for 15 Amps incandescent, which means they will safely handle the 200 Amp inrush of a 300 Watt heat lamp.
Thanks, Paul! Saved me all that typing... :B