Recs for Solar Cut Off Switch?
Looking for help finding some sort of cut off switch that I can mount on the wall inside my coach next to where the charge controller is currently mounted. Side note: I'm pretty much hemmed into p...
Forum Discussion
BFL13 wrote:
Don't know what counts as big and ugly, but you can use an ordinary 120v household light switch in the wall next to the controller. IMO not ugly, but might be too big, no idea. Doesn't matter if the wire being switched is 120v or 12v.
You can switch either the pos or neg "ARRAY" wire to the controller and it will cut off the array.
There might be a trick as to which wire to switch depending on whether the controller is positive or negative grounded and if it is grounded--in an RV no need to ground the array or controller, but who knows what an installer will do?
Or it might not make any difference no matter what. Somebody else who knows more can jump in on that as required.
I am not an expert on solar systems, but from my study, I believe that the positive leg should be switched, as opposed to the negative side. This is the same as wiring in 110V, where the positive side of a load should be switched, as opposed to the negative side.
