Phil The campground we are at has a 30a and 20a in the ped but they come off of a 30amp main with #10 wire. most of them are like this. the one you are looking at will most likely be on a 50amp main with #8 wire. Most cgs that have all 3 plugs still come off a 50amp main. I use both plugs but still have to watch amp draw as I have triped the main before.JMHO
bobby
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