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I have an MPPT 250/100 mc4 and 48v battery bank. I have 8 x 325 watt 12v panels. Can I have just one string of 8 in series or should I have two strings of four, each connected independently to a positive and negative plug on the MPPT. In the 2 string option, does this make the array a series parallel connection as the plugs are bussed together inside? Would I need to put breakers on the two strings?
You should probably use the Victron online MPPT calculator.
parallel connection .... Would I need to put breakers on the two strings?
Without panel specs, I would guess that 2 strings paralleled would be over the MC4 connector limit of 30a.
