I just recieved my set of 40' 10awg mc4 extensions. I'm no wire expert, but a quick visual side by side with my existing 12 guage coming out of my panel shows a noticable difference in actual size/diameter? Is this normal? Are the short lengths coming out of panels typically beefed up more with extra insulation? I kind of expected the extensions to be at least the same thickness, if not bigger. Both "claim" rated for oil, water, uv, direct burial, etc.. should I be concerned?
(Red one is the extension, black one is the panel cable)
Ty
(Red one is the extension, black one is the panel cable)
Ty