gfci circuit with welder - Home Brew Forums

Register Now!
Home Brew Forums > Home Brewing Beer > Electric Brewing > gfci circuit with welder

Thread Tools
Old 11-25-2011, 06:21 PM   #1
Apr 2010
Posts: 196
Liked 15 Times on 13 Posts

I was going to run my elecric this weekend for my rig. 50 amp gfci mounted in the circuit panel, 6 guage wire with ground and a neutral. I wanted to run my welder off of the same circiut, of course not at the same time I brew. My brother brought up the question if the welder would cause a lot of false trips, etc. of the gfci. Doing research on the web has all kinds of answers. Some people say you can't do it, others say no problem. With so many pro diy'ers here, I am sure someone knows the answer.

Reply With Quote
Old 11-25-2011, 06:39 PM   #2
crash1292's Avatar
Oct 2010
Posts: 248
Liked 30 Times on 16 Posts

was told by a steamfitter that a welder wont run on a gfi

Reply With Quote
Old 11-25-2011, 08:59 PM   #3
Sep 2009
San Diego
Posts: 177
Liked 1 Times on 1 Posts

depends on the welder. GFCI work by measuring any imbalance between electricity going out and coming back. A basic Stick welder (buzz box) does not isolate incoming and the welding circuit, allowing the ground as a return path which trips the GFCI. With MIG and TIG welders, it depends on the type. while i have not tested it out, the new electronic ones should run on GFCI.

A work around is replace the panel breaker with a regular 50 amp, use the GFCI 50 in a "spa disconect' with a cord you plug into the welding outlet.

Reply With Quote
Old 11-25-2011, 09:20 PM   #4
Mar 2010
Indianapolis, IN
Posts: 157
Liked 5 Times on 5 Posts

I have no problems running my Hobart MIG & Miller TIG off of a 50 amp gfci.

Reply With Quote
Old 11-25-2011, 11:06 PM   #5
danmdevries's Avatar
Sep 2011
Schererville, Indiana
Posts: 62

My lincoln MIG runs just fine on a GFCI.

Reply With Quote
Thread Tools

Similar Threads
Thread Thread Starter Forum Replies Last Post
Circuit Bee clearwaterbrewer Electric Brewing 0 07-28-2011 08:13 PM
Pwm circuit trouble lschiavo Electric Brewing 13 07-26-2011 05:49 PM
GFCI 30 amp cords extinct? Question on GFCI breaker too... jdlev Electric Brewing 23 07-26-2011 01:01 AM
Interrupt circuit help please... burbelly Electric Brewing 19 02-22-2011 09:40 PM
Why only a single gfci main supply, but no individual circuit protection??? MonkeyWrench Electric Brewing 16 11-15-2010 04:56 AM

Forum Jump