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If the fuse on my mppt 75/15 blows are my panels still putting power into the controller ? I know that the 20 amp fuse is on the battery output and i know i should connect my battery before the solar panels so what is the fuse blows ?? will the output from the panels damage the controller ??
No the controller should not be damaged when the fuse blows with panels connected and providing output to it. It will at most get warm (but that should be ok when the distances as described in the manual are taken into account; 10cm clear space above and below the vertically mounted MPPT controller).
