Please see attached spread sheet.
Solar panels are on the roof of house. 16by 440w panels each. Can I run 4mm2 cable to the bus bars as they are only carrying 13.86amp, but at the bus bar, its goes up to 55.44 when all four series are added to the bus bar.
So because I am doing a 4S4P, each series is 157.52v and 13.86amp. So, I think I could use 4mm2 wire down to my bus bar next to victron 250/100 blue solar charger. However, when it gets to the bus bars, it will be total 157.52v still but 55.44amp, (this is what will go into my blue solar 250/100 charger), which is too much for the 4mm2 cable. However, the line coming to the bus bar is only carrying 13.86amp from each series isn't it? The combined 55.44 amp will not run back up the lines and change the amp from 13.86 to 55amp correct? Not sure if this makes sense. Please see attached spread sheet. Thanks all. I have spent hours researching this. But cant find the answer.
Thanks so very much.
Solar panels are on the roof of house. 16
So because I am doing a 4S4P, each series is 157.52v and 13.86amp. So, I think I could use 4mm2 wire down to my bus bar next to victron 250/100 blue solar charger. However, when it gets to the bus bars, it will be total 157.52v still but 55.44amp, (this is what will go into my blue solar 250/100 charger), which is too much for the 4mm2 cable. However, the line coming to the bus bar is only carrying 13.86amp from each series isn't it? The combined 55.44 amp will not run back up the lines and change the amp from 13.86 to 55amp correct? Not sure if this makes sense. Please see attached spread sheet. Thanks all. I have spent hours researching this. But cant find the answer.
Thanks so very much.