NEMA 14-30R (not 14-30P) to TT-30R?

[DubV]

My garage currently has a 14-30R (not 14-30P) 125/250V receptacle. Is it possible to rewire this to a TT-30R 125V receptacle? I can't seem to find an adapter anywhere.

[Executive45]

In VAC terms...

WHITE is ALWAYS Neutral
GREEN is ALWAYS Ground
ANY OTHER COLOR is ALWAYS HOT!

ALWAYS use a tester to VERIFY and turn OFF power before playing with it....Dennis

[DubV]

Thank you Gents. I assuming the double pole breaker takes 240v to trip vice the single at 120v?

Until I can get my hands on a disconnect, Could I just flip the new breaker after its hooked up?

[myredracer]

If I can add one thing, I recommend installing a disconnect switch at your new TT-30R so you aren't plugging in live all the time. This can cause damage to your shore power cord plug blades and possible eventual overheating. A motor HP rated toggle switch is compact and fits in a standard outlet box.

[MEXICOWANDERER]

\

L1 vs L2 imbalance.

I've yet to see a multi-voltage installation that had continuously balanced L1, and L2 voltages (load).

If one has constantly higher potential I choose it as the phase tap for 120 vac operation.

Reminds me to rig up a TVS system on the receptacle where my microwave plugs in. When the microwave shuts off, it either turns on or off the wireless outlet relay I use on an outside light.

[Old-Biscuit]

Nema 14-30R.......240V service
2 hots, 1 neutral, 1 ground


Nema TT-30R....120V service
1 hot, 1 neutral, 1 ground




Go to Circuit Breaker Panel and locate the 30A double pole CB that the 14-30R is fed from.
Turn it off.
Disconnect load side wires from CB.
Remove CB and replace with a 30A single pole circuit breaker.
Wire nut one of the hot legs and wrap with electrician tape......connect other lead to new CB. (leave CB OFF)

Remove 14-30R receptacle....disconnect all wires
Connect the 1 hot leg, 1 neutral and 1 ground wire to new TT-30 receptacle and then install it in outlet box.

Turn on new 30A single pole CB and test voltage readings on new TT-30 receptacle.

[MEXICOWANDERER]

Just as a foot note I have seen blue substituted for red all other things being the same.

[GordonThree]

Easy enough. Inside the outlet box you should have four wires; black, red, white and bare (or green). Tape off the red wire and then attach black, white and bare/green to your TT-30R receptacle as indicated by its included instructions. Verify proper voltage with a tester or multimeter before connecting trailer.

[time2roll]

Yes. Just put a wire nut on one of the hot connections to cap it off and wire the rest to the new outlet.