general wiring of ground or neutral

dbarrett wrote:
Does that sound right? Dino

What sounds right is.....an answer you got in your OTHER thread....

Don't change the built-in charger at all.
Connect the battery clamps from the bigger charger to the batteries.
Plug in the bigger charger when you need it. The smaller charger should see the higher voltage and shut down.

The wiring you propose is going to be difficult because of the one built-in panel and potentially dangerous if you do something wrong.

That should be pretty much evident because of the variety of answers you are getting about how to wire the switch.

The absoulte best way to accomplish what you want is to replace your built-in with a 3 stage with the much higher bulk charging rate that you desire.
This would make the whole operation automatic for everybody, including the next owner.

And....it causes unnecessary confusion and wasted effort to fracture a discussion by starting a new thread. MUCH better to just continue the original.

And I repeat because it is important:
You NEED a meter or a little diagram of the switch before you do anything. If you don't, you risk personal harm and equipment damage. Having a switch with a center OFF risks leaving it in that position by accident and not charging the batteries at all.

Have you tried just running the chargers in parallel operation?
Sounded at first like you were trying to make switch into a transfer switch.
I would just use it for powering the charger circuit. Chargers would be 120volt so you would just use one side of the double pole switch. The ground would be spliced and pigtailed to the switch ground point only for safety. Neutral would be spliced straight through.

What you actually need is a SPDT switch. That may be why you're confused. The good news is that the switch you have will work if the line voltage can be split between two poles. I'd suggest to hook a battery to L1 and L2 in parallel and meter A and B poles while operating the switch. You should see power to one pole at a time when operating the switch. Like others said, neutral and ground are connected together outboard of the switch.

You could, possibly, have a marine type installation by using one of the L poles to switch neutral also. I don't know how the poles of the switch are orientated, though.

Thanks you guys, I'm new to RV.net and don't quite know how everything works yet. Will keep same project in one threat. I made this project more difficult than I needed too. Thank you for the switching clarification and the easy way to have two chargers. Dino