Forum Discussion
pianotuna
Aug 16, 2018Nomad III
There likely is an automatic circuit breaker in the positive feed near the battery bank.
Solar controllers are often wired directly to the battery bank, hence the need for a fuse near the battery bank. I tend to class these as catastrophic failure devices, so a fuse is "faster" protection than a breaker.
Solar controllers are often wired directly to the battery bank, hence the need for a fuse near the battery bank. I tend to class these as catastrophic failure devices, so a fuse is "faster" protection than a breaker.
LipschitzWrath wrote:
A couple things to add.
My second method above (2x 40A breakers) makes no sense, at least if you're powering off the converter. The converter breaker is going to open before you reach the ampacity required to open either feed breaker, unless the battery is somehow "supplementing" the DC load.
About Technical Issues
Having RV issues? Connect with others who have been in your shoes.24,283 PostsLatest Activity: Jul 17, 2025