DIY Home Improvement, Remodeling & Repair Forum > DIY Home Improvement > Electrical and Wiring > Garage wiring

Thread Tools Search this Thread
Old 02-06-2012, 09:59 PM  
Junior Member
Join Date: Jan 2012
Posts: 7
Default Garage wiring

My garage is currently wired w/ 12ga. wire, on 20amp circuits. The welder I'm looking at purchasing peaks at 20amps.

My buddy was telling me he thinks I need to install a larger circuit to acct for surges during operation? Is he right?

Should I be looking at a smaller welder?

Oldmandan is offline  
Reply With Quote
Old 02-07-2012, 02:43 AM  
Senior Member
BridgeMan's Avatar
Join Date: Aug 2011
Location: Cottage Grove, Oregon
Posts: 744
Liked 79 Times on 69 Posts


You might consider going with a 220 volt welder, instead of 110 volt (which I presume you're doing, a small wire feed job?). The larger unit will have a much better duty cycle, and would be good for welding far more than just sheet metal. And if you do choose a 220 volt, then you definitely need a heavier wiring circuit, probably No. 6, 3-wire, good for 50 amps.

BridgeMan is offline  
Reply With Quote
Old 02-07-2012, 08:00 AM  
Senior Member
Join Date: Mar 2006
Location: Welland, Ontario
Posts: 1,394
Liked 220 Times on 186 Posts
Likes Given: 14


What size circuit does the welder manual say it requires.

If it peaks at 20 amps that would be if you use it on the highest setting. If you are not going to be using it on the higher setting you will probably not have a problem.
JoeD is offline  
Reply With Quote
Old 02-07-2012, 05:11 PM  
Senior Member
Join Date: Nov 2007
Location: Grand Blanc, MI
Posts: 2,703
Liked 232 Times on 198 Posts
Likes Given: 109


Use 10AWG with a 30 Amp breaker. This will allow for a 24 Amp current (80% of the rated circuit).
kok328 is offline  
Reply With Quote

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Similar Threads
Thread Thread Starter DIY Home Repair Forum Replies Last Post
Garage Door Wiring BRIANL00 General Home Improvement Discussion 0 01-27-2012 06:54 AM
Fire-rated garage wall - wiring abrowning General Home Improvement Discussion 3 05-11-2010 05:37 AM
Garage ceiling for garage remodel dexterdog Walls and Ceilings 7 03-05-2010 01:34 PM
good wiring reference? garage and loft. Philphine Electrical and Wiring 2 01-08-2009 07:55 PM
Garage Wiring Imacarguytoo Electrical and Wiring 3 12-29-2006 05:34 AM