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30 15 amp circuit breaker

Jerry_L
Explorer
Explorer
I have a 5th wheel and found to have a weak 30 15 amp twin pole circuit breaker. This breaker is the main breaker (5th wheel is 30 amp) and the 15 amp is for the water heater. I've temporarily replaced the 30 15 amp with a 30 amp, connecting the water heater to it. Upon returning home, I have been trying to locate another 30 15 twin pole circuit breaker with no success. I've called most if not all the electrical supply companies who keep referring me to other companies that I have already contacted. Apparently, no one carries a 30 15 amp twin pole circuit breaker. I've reluctantly contacted an RV dealership asking if they carry the circuit breaker. I was informed it is no longer manufactured. When asked how they would repair such a problem, they indicated the installation of two separate breakers, one 30 amp and the other 15 amp. Question for members of rv.net, should I quit looking for the 30 15 amp and install two circuit breakers? Will there be problems with the 5th wheel if I leave it as?
19 REPLIES 19

BB_TX
Nomad
Nomad
Not all manufacturers breakers are interchangeable. Get the manufacturer model number off the breaker and then google it. I had the same problem finding a 20/15 breaker. Googled the model number and found numerous sources. Bought one on line, delivered in a couple days, and installed it.

And no, do not leave the water heater on a 30 amp breaker. The wire is not likely sized for that current. A short could cause a fire.

time2roll
Nomad
Nomad

agesilaus
Explorer III
Explorer III
gbopp wrote:
Will the Siemens breaker work in the OP's breaker box? Are the breakers universal,?


I don't know. If you look below where they show similar products there is a Murray brand (which I've never heard of) 30/15.
Arctic Fox 25Y Travel Trailer
2018 RAM 2500 6.7L 4WD shortbed
Straightline dual cam hitch
400W Solar with Victron controller
Superbumper

gbopp
Explorer
Explorer
Will the Siemens breaker work in the OP's breaker box? Are the breakers universal,?

agesilaus
Explorer III
Explorer III
Siemans must not have received the news that they weren't being made anymore:

Amazon

It's rare when you can't find something on Amazon.
Arctic Fox 25Y Travel Trailer
2018 RAM 2500 6.7L 4WD shortbed
Straightline dual cam hitch
400W Solar with Victron controller
Superbumper