I'm hoping to get some advice on a series parallel setup for 12 panels.
Im thinking the best setup would be 4S3P with the 3 strings going into a combiner box with a 20 amp fuse for each. (MIDNITE SOLAR TOUCH SAFE 30A FUSE, DIN RAIL 1000VDC)
My thinking is that I would want high voltage hence the 4S getting the volts up to 200 VOC but under the max for the mppt (250)
Does this feel right ? is there a better setup? my panels are ground mount about 220 feet from the MPPT
Im wondering if I need OCPD for each string ? or does the fuse in the combiner box suffice this need?
Any help is hugely appreciated.
Equipment:
MPPT:
Victron Mppt 250 - 100
Solar:
12 x BluSun 460 Bi Factials from Signature Solar
Performance at STC
Pmax/W 460
Vmpp/V 42.6
Impp/A 10.86
Voc/V 50.8
Isc/A 11.50
Maximum series Fuse 25A
Maximum System Voltage 1500 V/DC (IEC)
Im thinking the best setup would be 4S3P with the 3 strings going into a combiner box with a 20 amp fuse for each. (MIDNITE SOLAR TOUCH SAFE 30A FUSE, DIN RAIL 1000VDC)
My thinking is that I would want high voltage hence the 4S getting the volts up to 200 VOC but under the max for the mppt (250)
Does this feel right ? is there a better setup? my panels are ground mount about 220 feet from the MPPT
Im wondering if I need OCPD for each string ? or does the fuse in the combiner box suffice this need?
Any help is hugely appreciated.
Equipment:
MPPT:
Victron Mppt 250 - 100
Solar:
12 x BluSun 460 Bi Factials from Signature Solar
Performance at STC
Pmax/W 460
Vmpp/V 42.6
Impp/A 10.86
Voc/V 50.8
Isc/A 11.50
Maximum series Fuse 25A
Maximum System Voltage 1500 V/DC (IEC)