Hello all,I'm looking for some help with my travel trailer. I'm going add a 600 watt inverter to my Salem bunkhouse. I'd like to mount it under the master bed in the front of the camper. Wiring it does not bother me, what I need help with is running the wires from the batteries (2, 6 volt golf cart batteries) into the camper. What is the best way to pass the wires into the camper and than seal the hole?thanks!!

If you have a choice, it would be better (electrically) to mount the inverter close to the batteries and run a 120v extension to the final destination. Less voltage drop that way. Keep your 12 volt wires as short as possible.Otherwise, unless you can find an existing path, drill your hole, then shoot a little "Great Stuff" around the hole to seal it. Any hardware store should have it.

I'm only looking at a 6 foot or so run from the batteries to the inverter. The camper has a vapor barrier or membrane on the bottom, that seems like it will get shredded over time once I puncture it.

I ran 12v under mine and ran it on the outside edge of the frame I-beam. Then went up, or down, through the floor on the outside edge. Molding can cover some of the wire run or in my case I was able to run behind and through cabinets alongside the outside wall. this way the belly coverings did not need to be disturbed. Created a longer run but did not damage the coverings.

Thanks for the replies!!What'd you have to do to the floor after passing the cable through?

I piped 1/0 battery cables, an additional pair of 14 AWG and the solar controller's temperature sense wire through a 2" ABS pipe. The run was from one side of the trailer to the other. The pipe fittings where they entered/exited the floor were caulked in place. Using conduit or pipe is often an easier method because there are all manner of fittings/inserts that will be durable and seal any weather out.

Drilling through floor. Help, | Good Sam Community

13 Replies

dalenoel
Explorer II
Mar 09, 2016
I ran 12v under mine and ran it on the outside edge of the frame I-beam. Then went up, or down, through the floor on the outside edge. Molding can cover some of the wire run or in my case I was able to run behind and through cabinets alongside the outside wall. this way the belly coverings did not need to be disturbed. Created a longer run but did not damage the coverings.
Hotfoot5
Explorer
Mar 09, 2016
I'm only looking at a 6 foot or so run from the batteries to the inverter.

The camper has a vapor barrier or membrane on the bottom, that seems like it will get shredded over time once I puncture it.
Hiking_Hunter
Explorer
Mar 09, 2016
If you have a choice, it would be better (electrically) to mount the inverter close to the batteries and run a 120v extension to the final destination. Less voltage drop that way. Keep your 12 volt wires as short as possible.

Otherwise, unless you can find an existing path, drill your hole, then shoot a little "Great Stuff" around the hole to seal it. Any hardware store should have it.

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Drilling through floor. Help,

13 Replies

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