It is the fuse for the charger circuit to the house batteries. The circuit breakers (100 amp or greater) in the house battery compartment are for the 12 volt fuse panel and for the inverter 12 volt circuit. There is another 100 amp breaker on the right frame rail next to the chassis battery. It supplies power the fuse and relay panel down by the drivers left foot.
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Jim & Roy Davis
2016 Hurricane 31S
1961 Rampside in tow
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