50 amp wiring question
I'm getting a new trailer and it will be my first with 50 amp service. I've always noticed the standard NEMA 14-50R 4 pole receptacle on the AC pedestals but never paid any attention to the female sh...
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dryfly wrote:
Let me rephrase my OP. I fully understand AC split phase wiring of the 50 amp supply. I guess I don't understand how combing L1 and L2 in the dogbone adapter supplies 120 volts. Seems like it would produce 240 volts.
I'm asking this because instead of buying a 50 to 30 amp dogbone adapter, I want to take an old 30 amp extension cord and modify the trailer end with a 50 amp female plug, in essence build a 25' adapter.
L1 & L2 are combined in the plug so that they connect to only one hot leg in the pedestal. The other leg is ignored. You are correct in that there will be an unbalanced load on the pedestal side and if many customers are connected the same way it would be very inefficient. A few have built adapters in a way that they can select which side connects.
