I purchased a Contactor from Auber the other week, it's arrived, 240v coil double pole 40amp "Mars2 17427". Not sure how to wire up the switch though.
I was hoping it would have an instruction leaflet or labeling on the contactor saying what's what, but it doesn't. Here's a pic of it:
OK, picture doesn't want to show, it's this one though:
I understand that the lugs on both ends are where I'd attach my two hot leads from my 240v power source, and then the other side I'd attach the two same gauge wires out to what I'm powering, essentially.
But where do I wire the switch to control it? Presuming the sides, but do I wire both hots to one side, or one to each side, and does it matter which to which?
Lastly is there a minimum amperage rating on whatever switch I choose to turn this contactor on and off? Obviously I don't need the full load amperage rating, but is it going to need 5amps to 'contact', 1 amp, 10 amps?
I've emailed Auber but was hoping to get this wired up tonight.
I will be putting this in my system between the SSR and the element plugin, switching both of the hot leads on my 240v electric setup. This is the 'ok it's DEFINITELY off' switch.