Split 30amp into two 15amp circuits
I'm looking into converting a van we own into a camper van. I converted it into a grooming van a few years years ago and since we used a generator I just used two 15amp circuits to power the van. On...
Forum Discussion
LittleBill wrote:
there is literally no need for a main breaker, don't even know why people are suggesting it.
wherever he plugs in will protect the wire from the rv to the receptacle, the smaller breaker will protect the wire inside the rv.
The NEC requires a main disconnect (i.e. a main breaker, or a switch and fuses) when more than two branch circuits are used. If only two branch circuits are used, it's apparently not actually required, but still IMHO a very good idea for a couple of reasons:
1. It gives a good way to shut off the 120V power to the RV for performing maintenance or in the case of an emergency. This is likely the main reason the NEC requires it.
2. If you plug into e.g. a 50A RV receptacle and have no main breaker, a short in the electric panel or excess current use by the combined branch circuits could overload the shore power cord.
I'd rather be safe than sorry, particularly since a 30A breaker is not all that expensive.
