Quote:
Originally Posted by machyoung
Have read through hundreds of posts however can not find the definitive answer that I am looking for. Installing solar on my 18 Ace 29.3 which is "pre-wired" for solar. We all know that means 10g wire from roof to inside. I am installing 2 - 170 watt panels to a MPPT charge controller and so on. Question; How inadequate is the 10g wire for 340 watts and what we would be the best wire size? I ask because the wire routing is a challenge and I am trying to avoid it until my next upgrade? I will eventually upgrade the wire and possibly install a third panel. Thanks in advance for any suggestions. Robert
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348 Watts at 12 VDC is 29 Amps of current. 10 AWG wire is rated for 30 minimum. Some insulation types are rated higher.
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