Thanks for your response, I think I have worked out where you would use the contact free switching.
if you had the timer on the mains, but the electric circuit you were switching on was on a different voltage.
you can open and close that circuit with the switch, but the mains would never power...
Hi,
I have just ordered a timeguard timer switch, 16a up to 3.68kw timer.
I have wired it up to the 3 kw immersion element
This runs off a 16a breaker at the fuse box.
There is an isolated on off switch which I have kept then taken a wire to the live, one to the neutral and then earth to...