I have had trailers with a single circuit breaker located on the outside of the trailer near the battery before. They come in 30 and 50 amp. But on my 2017 Coleman 300tq Toy Hauler there are two circuit breakers wired together. The breaker on the right mumps to the breaker on the left and runs down to the junction box and ties into the other black wires.What's the purpose of the second breaker?

1L243 wrote:What's the purpose of the second breaker?Probably a slide.

On our Rockwood, the second breaker is for the slides.The second breaker in your picture has a much thinner wire coming out of it, so maybe it's not for a slide (or maybe just the usual bad design on an RV). Do you have a slide?Steve

I notice that the top wire is same for both breakers.On the left hand breaker is the top or bottom wire the one that runs to the battery?Likely one breaker is for something that is "Always on" (or operated by a momentary switch) like the jacks and the other is the MAIN. which can be "Turned off" by the salesman (Battery disconnect) Switch inside the RV.

On mine one powers the hydraulic slide pump. The other powers everything else.

My son FW looks just like that. One for landing gear one for slide. The big red wire at the top of the left breaker is the battery. It feeds the right breaker. You can check by removing one wire. Safest way is to disconnect the battery then disconnect the bottom wire on the right breaker then reconnect the battery and try the slide.Usually the two biggest draws are landing gear and slide and they run through breakers like that

Re-settable Circuit Breakers Wiring | Good Sam Community

1L243
Explorer II
Aug 16, 2018
I was going to go with the Bussmann Hi Amp circuit breakers but after spending a day going to 4 auto parts stores, 2 RV stores, 1 truck supply store and Pratt Electric and NOBODY carries them. Napa would be able to get me two over night for $45 EACH! I can order them myself with two day for $25 each (Brick and Mortar Stores are so history!)
So, I have decided to stay with the automatic resetting breakers 1/3 the cost and easier to find....
time2roll
Nomad
Aug 16, 2018
amazon. Yes something of reasonable quality and better function costs more.

CB185-30

CB185-50
1L243
Explorer II
Aug 17, 2018
time2roll wrote:
amazon. Yes something of reasonable quality and better function costs more.

CB185-30

CB185-50

It's not the money as much as the lack of availability. Why is it that nobody carries these things making Amazon the only option?
azrving
Explorer
Aug 17, 2018
I've been finding more items at Walmart

Often free shipping no prime membership

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