Electrical question

So I am not sure what to call what I am looking for but here goes my best description.

I am looking for A "Relay" that is temperature activated to shut off if say the temp gets too high.
For example: if the fan fails, which does happen sometimes, this relay would shut off the lights, preventing damage or fire.

Is there such a thing?

Oh man.. mind is working but it is old and cobweb.. Rheostat?
You will find it.. it is there.. somewhere..

Honeywell makes a mechanical temperature controller. It opens on both rise and fall. Be aware of the rla rating as it may not handle lights. If you know about relays you could have the controller operate a contacter that controls the light. I use a contacter that my timer controls to run lights. Load is no longer on timer. PM me if you need wiring help.

it's a thermostat, Honeywell is a big maker of them, just have to make sure the electrical specs line up with your setup

Thank you very much people!
I'll see if i can find something using this info
ty again

Look for a line voltage thermostat. Most thermostats run on 12 or 24 volts DC from the AC/Furnace controls, but the one I described will act as a temperature controlled switch one your 120 volts circuit.

You can get them at hardware stores, they have a long coppper wire sticking out of them and a copper prong like thing at the end of the wire, u place the prong thing where u want the heat to be read from and when it reaches a certai temp it will shut off any power plugged into it, look in housing heating section. My dad is a furnace a/c hvac guy and hes got these lying around all over the place, ive used them before, u can also use it to get the heater to turn on once the temp goes down, depends how u set it up

Look for a line voltage thermostat. Most thermostats run on 12 or 24 volts DC from the AC/Furnace controls, but the one I described will act as a temperature controlled switch one your 120 volts circuit.​

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Not sure if that will work. Op needs to turn off lights on temp rise. A 24 volt ac stat would work to operate a contactor to open light circuit though. You would need a 24 v ac transformer. Again if you need help with the wiring PM me I am a refrigeration mechanic lol. I built this to control lights, temp, CO2.

waterdawg said:

Not sure if that will work. Op needs to turn off lights on temp rise. A 24 volt ac stat would work to operate a contactor to open light circuit though. You would need a 24 v ac transformer. Again if you need help with the wiring PM me I am a refrigeration mechanic lol. View attachment 2841544 I built this to control lights, temp, CO2.

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I see what you're saying, there may be some things I didn't consider, but I think it could be made to work. I'm an electrician by trade, but I don't generally work with thermostats, so I'm not going to pretend like I know everything about them. I like your control cabinet, by the way...I geek out over that kind of stuff.