30 amp 240 volt mistake!!

Edd505 wrote:

mxdad777 wrote:
I recently bought a 2018 Rockwood 5th wheel with a 50 amp service. I have a 240 v 50 amp outlet in my RV cover that I’ve used for years to plug my motorhome into. Since I still have my motorhome and it’s parked in the RV garage I decided to hook up my 5er temporarily to my 30 amp 240 volt welder outlet. I had no idea that RV 30 amp cords were 120v only. Long story short, after connecting my 30 to 50 adapter I sent 240 volts down one leg of the buss bar. So everything on that side of the bus bar received 240 volts while the other side received zero. My question now is what will I need to replace? My refrigerator, GFCI, rooftop A/C were all on that side. The A/C seems to be working fine, but the fridge isn’t and the GFCI is smoked. Although I’ve wired up many homes, I certainly learned something about RV’a and their wiring today. I’m hoping just the circuit board on the fridge can be replaced. Anyone else have any experience with this? I’m sure this can’t be the first time this has happened. Stupid me!!

"I have a 240 v 50 amp outlet in my RV cover that I’ve used for years to plug my motorhome into" ---- Just how did that work?? 240 motor coach?

It works just fine even with my 2018 trailer with a 50 amp cord. The 50 amp receptacle has two hot legs, one neutral and one ground, just like a house. The trailer has two bus bars that split the power. One 120v leg feeds one bar and the other 120v leg feeds the other bar. They share the neutral and ground wires. I have my trailer plugged into it now and it works great. I got into trouble because I thought the 30 amp was wired the same way. I’m now a little smarter about RV power than I was yesterday. ;)