Originally Posted by Melmoses
I guess you are aware that your MH is 120v so a 50 amp box should be wired as such. If you connect a 50 amp 240 dryer type box you will fry everything inside.
I always cringe when people make posts about voltage on 50 amp motor homes.. The reason is you do not understand what you are posting about.
Everything INSIDE the motor home (With one possible exception) is 120 volt (or 12 volt) but, if his is a 50 amp RV, the power cord and the outlet outside is 120/240 volt,, Now I realise you do not understand divided dual voltage.. So, take a course, learn. The power transformer is center tapped.
There is a very good reason for designing an RV (or for that matter your house, which by the way is the same way save you may have more stuff that eats 240 volt there). And that is why they do it.
IF the Original Poster has a 50 amp rig.. What he is suggesting is one of the two things I advise people to do. A 50 amp RV outlet with 30 amp breakers.. The other option I advise is 50 amp all the way, but that would require he pull 3 new wires, not one, Much more involved.
To help you understand
L1- - - 240 - - L2
That is how it 's wired. N is Neutral. (The transformer center tap) and bonded (Somewhere, just one somewhere) to earth ground.