STBRetired wrote:
If you want to be anal use 1 red, 1 black, 1 white, and 1 green. 6 GA would be fine for 25 feet from panel to outlet. 1 inch might be a little tight. I used 1 1/4 inch for mine. I did not use a box with a breaker, but I am thinking about swapping it out so that I can turn off the power from outside. Just a convenience thing, not a code issue.
Since the black and red are basically the same it doesn't make much difference. Two black, two red, one of each, are you going to wire it any differently?
A 50 amp GFCI is expensive and not required in this case. If you were supplying power to a hot tub or swimming pool then yes it would be required. You would probably also need an outside disconnect within sight of the pool or hot tub. You probably have one near your outside A/C compressor at home, if you have one.