I'm setting up my Enphase microinverter system and have three lines to run. I'm using 12-gauge Q cable with matching connectors, but the total distance is about 150 feet. What's the best strategy to reduce voltage drop over this distance? Should I place the combiner box at the panels (it won't be in direct sun or rain, right?) and switch to a single 3-gauge line to the breaker box, or would it be better to use a junction box at the panels and run three separate 6-gauge lines to a combiner box inside the house? I'm open to any other tips for managing long microinverter runs effectively!
1 Answer
Consider running three lines of 10 or 8 gauge to your Q cables. A Jay box from Iron Ridge can be a good option for placement under the panels. Just make sure everything is properly protected!