TimC
WI/UP Border
- Joined
- Apr 17, 2020
- Messages
- 139
I am designing a 1.3KW system. I can run the wires from the array 35' into my garage, then I would like to use NM (or other interior wire) an additional 35' to the SCC inside my basement. I am seeking info about how to wire this 2S2P system.
Combined I'm looking at 81v and 20.5a. Disregarding the SCC for now should I combine the 2S2P at the array with 10awg solar wire (MC4)? Then run to the inside of the garage with 8 or 6awg solar wire to a breaker box? Then run similar gauge with NM wire to the SCC?
I'm seeing threads which say to just use 10awg all the way to the SCC. Seems that will result in undesirable voltage drop. I'm not trying to go the cheapest route. I want to run the correct gauges.
VOC = 40.49
ISC = 10.25a
Four 330w panels
Panels to SCC about 70'
Combined I'm looking at 81v and 20.5a. Disregarding the SCC for now should I combine the 2S2P at the array with 10awg solar wire (MC4)? Then run to the inside of the garage with 8 or 6awg solar wire to a breaker box? Then run similar gauge with NM wire to the SCC?
I'm seeing threads which say to just use 10awg all the way to the SCC. Seems that will result in undesirable voltage drop. I'm not trying to go the cheapest route. I want to run the correct gauges.
VOC = 40.49
ISC = 10.25a
Four 330w panels
Panels to SCC about 70'