Re: Help!
I am on my own property I have a 100 amp service from the meter box. One set of breakers in the box feeds a receptical. Into that I have a plug that can be wired for 30 or 50 amps (30/50) I have it wired for 30 amps. The wire is 10 ga. On the other end of the wire I need a female plug. The camper has a male 50 Amp plug coming out of it....but there is a sticker from manufactor that says 30 amp on the trailer...so I want to know can I put a 50 amp female plug on my wire? Keeping in mind the other end is wired for 30 amp?
There are 3 questions here.
1) What plug goes into the trailer receptacle. A 50 amp is different from a 30 amp. They are not interchangeable. While you're saying the camper has a 50 amp plug coming out of it, you're also saying there's a sticker that says 30 amp. Something is wrong there.
2) You have a plug that goes into the pedestal receptacle that you say can be wired for either 30 or 50 amps. I know of no such thing. The only thing I can imagine like that would be a 50 amp NEMA 14-50P plug with only one hot leg wired. And if that's what you're doing, you'd be plugging 30 amp wiring into a circuit that is probably carrying more than 30 amps.
3) You haven't mentioned the rating of the circuit breaker that protects the pedestal receptacle. If you're using 10 ga wire for the cord, you should be using a 30 amp circuit breaker to protect that circuit. And a 30 amp receptacle - a NEMA TT-30R.
I'd suggest you get some help from a licensed electrician familiar with RV electrical. A mistake could have really serious consequences.