Rv Battery Disconnect Switch Installation Positive Or Negative

If your system has the battery negative tied to earth safety ground or frame ground of a vehicle then you want the switch in the positive leg.

Rv battery disconnect switch installation positive or negative.

The negative cable connects to the body ground already so there s no additional danger if it rubs. As i was considering this it came to mind that somewhere i had read and or heard that the switch in this type of circuit should be on the positive side. There s a more practical reason the negative post is more accessible and it doesn t have the extra hot wires going to the positive battery clamp to deal with. To provide more specific troubleshooting information we need to know the make model and year of your rv.

So you re less likely to have the shower of sparks when disconnecting the switch since you re further away from the fender well sheet metal. If the geometry of the situation forces you to put it on the positive terminal that works just as well. It s the same principle as why you should always disconnect the battery s negative side first. This essentially adds a on off switch to the positive line going from the battery to the camper so when turned to off the camper devices do not continue to draw from the battery.

Thus less amps on the switch. To wrap it up usually the best place to install a battery disconnect switch is at the negative battery terminal where it connects to the chassis. To answer your questions. I say negative and heres why.

The switch is rated at a steady amp and a momentary amp. Well if the electrons are flowing from the positive to the negative and some are getting used up by the starter and or the system so there should be less going back into the battery. Just be careful when making any connections to house batteries. It s a class c mh so no 5er or tt issues.

I did install a disconnect switch on the house battery negative terminal and will probably do the same on the chassis batteries. I plan on installing a battery disconnect switch on our bc this spring when i bring it out of storage. The switch disconnects the battery s electrical power or isolates from the house portion of your rv. Typically the battery disconnect switch is designed to disconnect the house batteries similar to pulling the negative cable off the battery so nothing can drain it when the unit is not in use or in storage.

Spotting the switch in the rv is quite easy. For our application yes the positive terminal of the battery was connected to the disconnect switch and then the camper positive was also connected to the other pole. In case your rv does not have one you can opt for an aftermarket rv battery disconnect switch installation.