30 amp vs 50 amp
Scott, reverse polarity means one leg of the power, which should be the neutral needs to be connected to the neutral leg. One must not connect the hot leg to the neutral leg of the MH or you will end up electrifying the ground of the receptacles. Highly possibility of getting electrocuted.
With the 50 amp connection it is 240 volts across both hot leads, 1 ground and 1 neutral and a 30 amp connection it is only 120 volt across 1 hot lead, 1 neutral and 1 ground.
One a dryer connection there is 240 volts across 2 hot leads and one ground.
2013 Georgetown XL 378
2008 Honda CR-V