I'd like to confirm a few things about connecting the solar panels together and using a breaker.
Let's say I plan to use four 300W panels wired in 2S2P. Am I correct that I simply wire two in series, the other two in series, and then use a pair of MC4 Y connectors to make the parallel connection, all on the roof? And then I can run a single pair of wire inside to the charge controller? No combiner box is needed, correct?
Between the panels and the charge controller I need a breaker. If these panels have an Isc of 9.78, that means I need 2 x 9.78 x 1.56 = 30.5. I found a 32A DC breaker for PV so that should work.
Can this breaker be used as the isolator/disconnect if I have a need to isolate the panels from the charge controller?
Let's say I plan to use four 300W panels wired in 2S2P. Am I correct that I simply wire two in series, the other two in series, and then use a pair of MC4 Y connectors to make the parallel connection, all on the roof? And then I can run a single pair of wire inside to the charge controller? No combiner box is needed, correct?
Between the panels and the charge controller I need a breaker. If these panels have an Isc of 9.78, that means I need 2 x 9.78 x 1.56 = 30.5. I found a 32A DC breaker for PV so that should work.
Can this breaker be used as the isolator/disconnect if I have a need to isolate the panels from the charge controller?