Forum Discussion
BFL13
Aug 15, 2018Explorer II
You have the required 60a fuse/CB on the converter-battery path. But it seems there is no fuse/CB for when you are on shore power with the converter supplying the DC fuse panel. IMO that pos wire should be fused too.
The "return wire" if a second pos for converter- fuse panel needs a fuse too. You could put another fuse /breaker on the pos wire going from the converter to the fuse panel side of the 60a breaker there now. That would take care of both those wires going from the 60a breaker to the fuse panel if the supply were converter instead of battery. Right now, they only get protection if the supply is battery.
You could confirm that mystery "return" wire is doing what you think, by disconnecting the other wire and see if you still get supply to the fuse panel. Disconnect that and unless there is a third path, that should cut off 12v to the fuse panel. Now you know.
Your solar controller is supposed to have a fuse on its pos wire near the battery post. You can have that somewhere close to the pos junction at the inner end of the breaker instead, and let the 60a breaker do the rest of the way to the battery bank.
The "return wire" if a second pos for converter- fuse panel needs a fuse too. You could put another fuse /breaker on the pos wire going from the converter to the fuse panel side of the 60a breaker there now. That would take care of both those wires going from the 60a breaker to the fuse panel if the supply were converter instead of battery. Right now, they only get protection if the supply is battery.
You could confirm that mystery "return" wire is doing what you think, by disconnecting the other wire and see if you still get supply to the fuse panel. Disconnect that and unless there is a third path, that should cut off 12v to the fuse panel. Now you know.
Your solar controller is supposed to have a fuse on its pos wire near the battery post. You can have that somewhere close to the pos junction at the inner end of the breaker instead, and let the 60a breaker do the rest of the way to the battery bank.
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