Hooking up 30A at home

Old-Biscuit wrote:

enblethen wrote:
A NEMA 14-30 is a 30 amp 120/240 device. A standard 50 amp cord body style adapter will not plug into it as the neutral pin is not long enough.
This configuration is used for a dryer. It is four wire, two hots, neutral and ground.
I would suggest if not being used any longer would be to change it out to a fifty amp NEMA 14-50 receptacle, then use a standard 50 amp to 30 amp RV adapter.
If receptacle is needed for some other device, add another box and install a standard 30 TT receptacle. Connect one led of the circuit, neutral and ground. Insure it is wired 120 volts.

Do THIS^^^^^^^
Simple swap of receptacles
And be done with it!

eldel wrote:
I'd really like to be able to run the AC on my rig when I've got it parked outside the house before we take off on a trip. The 110V house supply isn't enough but I do have a 220V / 30A outlet in the garage which is a 14-30 outlet.

I'm looking and reading but I don't see anywhere where I can get a 14-30 to TT-30 converter. 14-50 to TT-30 yes. Is this even possible (assuming that the 14-50 converter just splits 220/50 into 2 x 110/25) or am I looking at wiring in a new circuit?

way2roll wrote:
Why do you say the house current isn't enough? I run a 50/30/15 adapter and plug it into an exterior house outlet. As long as I am careful to run one AC only, no problem. Seems like this is more complicated than it needs to be unless I am missing something.

pianotuna wrote:
coolmom,

Driers may be 240 volts. Be extremely careful.

ktmrfs wrote:

coolmom42 wrote:

enblethen wrote:
A NEMA 14-30 is a 30 amp 120/240 device. A standard 50 amp cord body style adapter will not plug into it as the neutral pin is not long enough.
This configuration is used for a dryer. It is four wire, two hots, neutral and ground.
I would suggest if not being used any longer would be to change it out to a fifty amp NEMA 14-50 receptacle, then use a standard 50 amp to 30 amp RV adapter.
If receptacle is needed for some other device, add another box and install a standard 30 TT receptacle. Connect one led of the circuit, neutral and ground. Insure it is wired 120 volts.

Is this a scenario where an electrician could add a box running the wiring off my dryer receptacle?

Am I correct in thinking the dryer should not be running while the RV is plugged in, or the circuit breaker could trip?

it is possible the breaker will trip from overcurrent depending on the AC draw. However I suspect it may also be against NEC or local code, the dryer is a dedicated circuit and may only allow one outlet. The RV outlet would likely be onsidered a dedicated device as well and breaker would need to be sized to cover both loads at once. Total load is limited to something like 80% of breaker rating.

Best advice if you want to do this is to get an electrician who is knowlegeable about the RV-30 outlet as well so he doesn't wire it as a 220V circuit!