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Old 01-17-2023, 03:05 PM   #13
larsdennert
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Join Date: Nov 2020
Posts: 37
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#10 wire is generally 30A rated. Best not to use a 40A fuse/breaker on it. Keep in mind on some TMs the 12V wiring is wired like 120V wiring with the hot "positive" being black and "negative" being white. Best to double check with a volt meter.

Also #4 wire is not rated for a 100A breaker. Why would you use #2 everywhere else and then not to the inverter which is the load? You'd be better off putting the inverter near the batteries and then running cheap romex at 120V to your distribution point.
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