Forum Discussion
DrewE
Jun 14, 2018Explorer II
scooterd145 wrote:
Thank you folks for taking the time to answer my question.
My rig is 30Amp 120V 3 wire.
I tried getting a replacement buss bar but this one was obsolete and not available
I ended up going with one from Home Depot that was almost as small and that I could modify the hole it fits in and still close the cupboard door that is in front of it. I was assured that even though this one is main lug (as opposed to main breaker) that the main breaker from the rig cord will back feed other breakers on that side of the buss bar. If he is right I am in business.
https://www.homedepot.com/p/Square-D-Homeline-100-Amp-6-Space-12-Circuit-Indoor-Surface-Mount-Main-Lug-Load-Center-with-Cover-HOM612L100SCP/100190554
It was certainly cheap enough and in stock, even with new breakers I am under $60. With any luck I will have it back together this weekend.
I'll let you know if this solves my problem!
Thanks
Scott
That should work, with a couple of caveats. First, you'll need (and maybe already have) the ground bus bar that is sold separately, as an RV needs to have the neutral and ground busses isolated from each other.
Second, it's a 120/240V load center, so you'll either have to skip every other breaker position (using three of the six) or else connect a jumper wire between the two main lugs of sufficient size to carry the full service current (i.e. 10 gauge or heavier). In either case, the main breaker needs to be a single pole breaker; a double pole main breaker should not be used in this application, as it's a 120V circuit and not a 120/240V circuit. I don't know that jumpering the main lugs would technically be acceptable per the NEC, but if done properly it's not unsafe.
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