Forum Discussion
enblethen
Nov 14, 2017Nomad
Look closely at the circuit breakers. They should be marked for their ampacity.
Look at the 12 volt DC distribution panel for a main battery fuse. The circuit breaker should be the same size. My guess around a 40 amp.
If you have a tongue jack the smaller circuit breaker, around 20 amp should feed it.
Circuit breakers can be jumpered on the battery side.
There is not really an in/out of the circuit breakers. Use good ring terminals and not spades sized for the post. Suggest using electrical de-ox grease on all connections.
Look at the 12 volt DC distribution panel for a main battery fuse. The circuit breaker should be the same size. My guess around a 40 amp.
If you have a tongue jack the smaller circuit breaker, around 20 amp should feed it.
Circuit breakers can be jumpered on the battery side.
There is not really an in/out of the circuit breakers. Use good ring terminals and not spades sized for the post. Suggest using electrical de-ox grease on all connections.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,345 PostsLatest Activity: Jan 02, 2026