DC Inline Fuse

[WeekendWarrior]

Hello again, all!

I am still loving my '13 27RLSWE trailer, and have done some recent upgrades to make it more "boondocking-ready."

I purchased 4 Interstate GC2 6V batteries, which are running in series and parallel. One thing I noticed when removing the dealer-installed battery, is that there is no in-line fuse. The positive lead, however, runs to the frame and is attached to what looks like a short breaker (shortstop?). Everything I have read online demands an in-line fuse, so I was planning on installing one just for extra protection in the box where the batteries are mounted on the tongue. I have 4AWG wiring interconnecting the batteries, as well as the leads off of the batteries. What size fuse should I get? 30A enough?

[Javi]

That doohickey is a 30 amp auto reset circuit breaker...

[wtxdxer]

Originally Posted by WeekendWarrior

The positive lead, however, runs to the frame ...

Hopefully you meant the NEGATIVE lead runs to the frame.

[hankaye]

wtxdxer, Howdy;

Originally Posted by wtxdxer

Hopefully you meant the NEGATIVE lead runs to the frame.

NO, he meant and did state the POSITIVE lead ...
Keep reading the rest of the sentence ... " The positive lead, however, runs to
the frame and is attached to what looks like a short breaker (shortstop?)."

Fantastic example of what happens
when a bit of information is jumped upon and the rest (the part that makes
sense), is left out...

hankaye