Wire sizing question
I'm helping a neighbor install a solar array. It consists of 21 280 watt panels. I've wired them into 7 strings of 3 to the Midnight combiner box. Now I need to run a wire to the Outback load center. It is 35' one way. Each string of panels will produce 15 amps at about 110v. for a total of 105amps. The combiner box is set up to handle #2 wire but I was afraid that might not be large enough. What size wire would be appropriate for that amp load and wire length?
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