240VAC SSR in a 120VAC application?

[bnauman]

Up front; I know enough to be dangerous, which is why I'm here.

I have a temp contoller that I'd like to use with a SSR to control the power to a heating element. This project is on the budget plan, so I was looking at e-bay for most of my components. Most of the relays I've seen there are rated for 240VAC at some X number of amps. Is there any reason why a relay would not work with a 110VAC load (heater)?

 

[Skogsgurra]

Most SSRs will work. But some of the heftier ones have auxiliary circuitry that may or may not be satisfied with the 110 V. They are then usually marked with a voltage range. Like 160 - 250 V AC or similar.

I see no reason why you shouldn't try. You cannot set anything on fire if you keep gaugues up and temperatures down (heat-sink!).

Gunnar Englund

http://www.gke.org

 

[itsmoked]

I agree with skogsgurra it won't normally be any problem.