Quote:
Originally Posted by Evening
I own a 2019 Thor 22E, with solar ready : So I understand the wires from solar on roof down to controler are 10 gauge. Last August, I installed a 160 W panel to the 10 amp controller: all working well! My question is : can I add a 30 amp controller and a second panel (about 160 W) with the same internal wires ? It would total 320 Watts to a 30 amp controller : seems ok from my calculations. But would the wires be ok ? (the ones from the roof to the controller) Is this "up to code ?" or safe even a safe setup ?
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Existing 10 awg wire will not be sufficient for 26 amp load. You can check the calculations here
https://www.wirebarn.com/Wire-Calculator-_ep_41.html
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