Keith_HawExplorerOct 29, 2014What gauge wire?I'm going to be adding a second solar panel and need to know what gauge wire I need for 2/140w panels on a 35' run. Thanks Keith
BFL13Explorer IIOct 29, 2014The "run" is the one-way distance? Panels in series 9a, 44V; in parallel 18a, 22vThis calculator uses the one-way distance so it is easy to usehttp://www.calculator.net/voltage-drop-calculator.html?material=copper&wiresize=2.061&voltage=12&phase=dc&noofconductor=1&distance=35&distanceunit=feet&eres=18&x=49&y=10
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