Welder plug works!!

happycamperbrat · April 17, 2011, 05:47:32 PM

I got the plug in and tested it, photos are here http://s495.photobucket.com/albums/rr315/happycamperbrat/Little%20GTO/home%20hookups/ with captions about the job. But now Im back onto the RV plug and it is only 3 wire sooooooo do I need a single pole breaker now or if not, what the heck do I do with the other hot wire off the double pole breaker?

Stormcloud · April 17, 2011, 06:19:00 PM

You need a single pole breaker. 30amp would be standard with #10 wire for connection.

happycamperbrat · April 17, 2011, 08:49:46 PM

Thank you Storm! I just had a light bulb go off in my head about all of this. Yes, I do have to use a single pole to run 3 wired anything BECAUSE otherwise if I split the double pole to run different things then I would again run into the same problem as i did originally with drawing 30 amps out of an instument (like the 120 outlet) and having it catch fire........ right?! It's what everyone was trying to tell me!

Sean · April 17, 2011, 09:16:31 PM

Teresa,

Now you have me confused. All the installation photos are of a 14-30R, which is a 4-wire circuit requiring a double-pole breaker. The last photo, of a retail box, shows a TT-30R, which is a 3-wire outlet.

Are you going to replace the 14-30R with the TT-30R? I thought you were just going to use an adapter from the 14-30 to a TT-30?

If you are going to replace the 14-30 with the TT-30, ideally you would change to a single-pole, 30-amp breaker. The second (red) hot wire would be removed. However, it is not unsafe to continue to use the double-pole breaker in place now. Just leave the second pole unconnected.

-Sean
http://OurOdyssey.BlogSpot.com

happycamperbrat · April 17, 2011, 09:22:07 PM

Sorry Sean. I am leaving the 50amp as is. Just today I finished the installation of the 4 wire 30amp welder outlet. But Im still going to install a 3 wire 30amp RV plug, which is the last photo. I decided not to use the adapter after all, and am just going with a rv dedicated 30amp outlet.

Sean · April 17, 2011, 09:59:54 PM

Quote from: happycamperbrat on April 17, 2011, 09:22:07 PM
Sorry Sean. I am leaving the 50amp as is. Just today I finished the installation of the 4 wire 30amp welder outlet. But Im still going to install a 3 wire 30amp RV plug, which is the last photo. I decided not to use the adapter after all, and am just going with a rv dedicated 30amp outlet.

Ah. OK, then, yes, you want to use a 30-amp single pole breaker and #10 THHN or THWN wire.

-Sean
http://OurOdyssey.BlogSpot.com

happycamperbrat · April 17, 2011, 10:05:25 PM

Gottcha! And I know you and your lady travel thru Death Valley area now and then, come on by and hook-up