Ok I have a breaker question.
I have 15amp 300VDC midnight breaker for my solar string. I can’t seem to figure out if I add up VOC to get the volts I need to stay under or do I add up VMPP and stay under that ? My VMPP comes out to 276.8 VDC and my VOC comes out to 328 VDC.
So if I go off VOC I’m thinking I would need a higher voltage breaker ?