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Fixed_Sight_Tra's avatar
Fixed_Sight_Tra
Explorer
May 24, 2014

Connect cables from solar closer to converter than batts?

Hello all, I have a unisolar 136 watt panel and a morningstar prostar 30 controller. IF I run the wires from the panel down the convenient place above the controller were there are already holes...
Shadow_Catcher's avatar
Shadow_Catcher
Explorer
May 25, 2014
This is a high voltage panel Vmp 33V nominal 24V so voltage drop is not as important, you could get away with 10ga wire. HOWEVER you may be exceeding the input voltage of the controller with the Unisolar panel. I chose a Steca controller which was the only PMW controller that would handle the voltage from my Unisolar 144W panel. You may have to move to a Morningstar MPPT controller or a Steca.

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