MC4 cable

fernandonhfernandonh Solar Expert Posts: 35
My REC250 panels has a 12 AWG wire with MC4 connectors. I will be using one single panel and connecting it to my MPPT CC.

All MC4 extension cables on this site are 10 AWG, so my question is, should I look for a 12 AWG in a different site or can I use the 10 gauge offered here?

Tks :-)

Comments

  • PhotowhitPhotowhit Solar Expert Posts: 4,996 ✭✭✭✭
    Re: MC4 cable

    The connector is the same, 10 gauge is just a little thicker wire. 10 gauge will work fine and suggested if your run is long.
    Home system 4000 watt (Evergreen) array standing, with 2 Midnite Classic Lites,  Midnite E-panel, Prosine 1800 and Exeltech 1100, 660 ah 24v ForkLift battery. Off grid for @16 of last 17 years. Assorted other systems, and to many panels in the closet to not do more...lol
  • fernandonhfernandonh Solar Expert Posts: 35
    Re: MC4 cable

    Distance from panel to CC is about 7 feet.

    So there isn't a problem with the fact that the wire size coming out of the solar panel is 12 gauge and the extention wire to CC is 10?
  • ggunnggunn Solar Expert Posts: 1,973 ✭✭✭
    Re: MC4 cable
    fernandonh wrote: »
    Distance from panel to CC is about 7 feet.

    So there isn't a problem with the fact that the wire size coming out of the solar panel is 12 gauge and the extention wire to CC is 10?
    Not at all.

    fifteen characters
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