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Beachless

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    Beachless got a reaction from Coulomb in Does the Sunsynk have reverse polarity protection on the MPPT inputs?   
    Thanks Coulomb.
    I recently bought the complete wired combiner box so its all new and the breaker is rated 63A, 600v DC no polarity indicated anywhere on the breaker. The MC4 connectors were just used as they came already wired into the combiner box but I'm glad they were there as that was the only way to disconnect things.
    The good news after inspecting things early this morning and switching in a spare DC breaker everything is working as it should. The MC4 looks good I hit the power button on the inverter somewhere in the chaos and I think either the melted breaker or switching off the inverted dropped the current so the connector wasn't under much load.
    Why the breaker self combusted with less than 11A load I don't know but I'm just glad its the only thing that seems to have been damaged. 

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