50 amp to 20$30 amp RV cord
I just added a Colman AC to the bedroom of our 34ft Holyday Rambler Presidential TT as the existing Carrier unit in the living area is way short on cooling when the temps get in the high 80s or above....
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You have a 20 amp extension cord that is hooked up to a 50 amp breaker! The only protection is the 50 amp breaker the campground supplies. You need breakers! A 50 amp main that feeds a 30 amp and one 20. Hard to do with the set up you have. To do that I would think you'd need a sub-panel.
I kind of did the same thing in my 30 amp camper. I removed the 30 amp cord and I added a 50 amp cord that powers a new sub-panel I've installed.
I feed 50 amps into that panel through a 50 amp breaker. Then I moved my A/C on one phase of that panel using a 20 amp breaker and new wiring from the sub to the old panel (where the a/c was hooked up). I run the rest of the camper off of the other phase with a 30 amp breaker using the existing 30 amp wiring.
I also ran an outlet off a 20 amp breaker on the same phase as the a/c so I can plug in an electric heater. You'd never use heat and a/c at the same time anyway. Works great! No more popping the 30 amp main. If I go to a campground that only has 30 amps I have a adapter I can put on the end of the 50 amp cord so I power up both bars in the sub panel with the same phase. Never had to do that but I could if I had to. We just camp where there's 50 amps.
I kind of did the same thing in my 30 amp camper. I removed the 30 amp cord and I added a 50 amp cord that powers a new sub-panel I've installed.
I feed 50 amps into that panel through a 50 amp breaker. Then I moved my A/C on one phase of that panel using a 20 amp breaker and new wiring from the sub to the old panel (where the a/c was hooked up). I run the rest of the camper off of the other phase with a 30 amp breaker using the existing 30 amp wiring.
I also ran an outlet off a 20 amp breaker on the same phase as the a/c so I can plug in an electric heater. You'd never use heat and a/c at the same time anyway. Works great! No more popping the 30 amp main. If I go to a campground that only has 30 amps I have a adapter I can put on the end of the 50 amp cord so I power up both bars in the sub panel with the same phase. Never had to do that but I could if I had to. We just camp where there's 50 amps.
