Hi, I have found a bit more information and it looks like you don't need to earth the negative in an off grid system which mine is. In that case, can I just use three inline fuses for each set of panels in series? I have three sets of two panels. I don't really want to take the three strings to the junction box as I am planning to use a 3 way MC4 splitter so from the panels will only have a single positive and a single negative. My PV array current will be 26 amps @74 volts max.
Thanks,
Thanks,
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