Replace 15 amp inlet with 30 amp

[rlooten]

Ok airstream community, please give us any helpful advice...It is welcome. We have a 1956 overlander. Just got a crazy rewiring quote. We would like to rewire it ourselves but have to have Airconditioning working next week. We'd like to replace 15amp inlet with 30 amp inlet by marinco or duration temporarily until we can do a total rewire and replace the braker box. Is this crazy? We'd use minimal electric while in between on the project. We'd need ac and lights. I know it's not the right way, but could it work so we don't have to buy to inlets. We'd be hooking new 30 amp inlet to cloth wiring. Thanks
Rebecca

[TG Twinkie]

I doubt the wire between in inlet receptacle and the panel inside the coach is large enough to handle 30amps.
What is the largest breaker in the panel?
How many breakers are in the panel?
15 amp breakers are typically wired with #14 wire. Not big enough for your air conditioner.

[Silverflames]

Run a separate 15 amp rated extension cord to the AC unit until you get the wiring done.

Like stated before, it's doubtful the wires are large enough to carry the amperage.

[mimiandrews]

As said above, it's not the inlet that counts, it's the size of the wire. Too much load through a small wire equals lots of heat. If a fuse or breaker doesn't stop it in time, that equals fire.

[J. Morgan]

Originally Posted by Silverflames

Run a separate 15 amp rated extension cord to the AC unit until you get the wiring done.

Like stated before, it's doubtful the wires are large enough to carry the amperage.

Boom!!

The simple answer!


Gradiens super tenui glacie.

[HiJoeSilver]

Is the ac a new addition? How is/was it wired?

If you can easily get from the back of where your new/old inlet is to the breaker box, replace the wire that's there with 10 gauge wire. If it will be inside the trailer and exposed, recommend flexible metal conduit shielded wire between inlet and breaker box, don't forget anti chafe plastic shields on the ends.
It will follow the same connection pattern in the breaker box which makes changing on that end a little simpler. Change the main breaker from 15a to 30a.
Remove the old inlet and connect to new wire run.
Use a multimeter to check you have good connections and no shorts before energizing.