I have a new 225 Lincoln stick welder I got for Christmas. I will need
to add a 220 outlet and circuit from my sub panel.
I am assuming I need a 50 amp breaker. What size/type wire do I need?
Would it be best to use conduit? All I could find at Lowes are suface
plugs. WIll these be adequate and can I use them with conduit? ANy
help would be greatly appreciated!
Does your welder have a plug? You can tell by that what the circuit needs
to be. If not look in the book.
What wiring you use depends on the situation that you have. Is your
electrical panel on the garage? If so you could nipple out the back and out
the outlet on the wall.
Assuming 50 amps you will need 6 CU or 4 AL.
Surface plugs are fine, check the openings out so that you do not get into a
tite if you run conduit. Some the surface plugs I have used are pretty tight
if you come in the back or bottom. You might need to go to a real electric
supplier to get the plug and cap you need. Welding shops here in Phoenix
You can use wire as small as #10 copper because the duty cycle of that
welder is < 20%, but I'd use #6 or #8 and a 50A breaker. #10 could
cause problems down-the-road if someone plugged in a 60% duty cycle
welder. I think the plug you need is called a "NEMA 6-50R", and the
receptacle that I bought has a built-in cable clamp that can be removed
with a few screws and replaced with a 3/4" conduit and locknuts.
BTW, I though Licoln welders came prewired with a cord and plug, and a
they included receptacle for you to wire up.
You want real help, call a qualified electrician out to do the work for you!
Getting answers to questions in this newsgroup will get you killed and have
your house burn down. If you are going to ask for help the least you can do
would be provide photos of your garage, your main panel, your sub panel
inside and out. Check to see if your lugs are tight to begin with. Are
your going to run surface mount conduit for through the walls. If in the
wall we will need a photo of the inside of your wall too. As you can
clearly read, you are going to need real help!
Standard practice is to use a 50 ampere 4 wire range plug and receptacle
using a 50 ampere two pole 240 volt breaker and No. 8 copper SER or
equivalent cable rated for 90 degrees C. but used at its 75 degree C.
The reason for this is that the range parts are relatively inexpensive.
However, the manufacturer's listing instructions are the law and should be
Check with the local electrical code book. It should tell you if you can
derate the feed due to the duty cycle. But if you derate the wire, you also
use a breaker that will peotect the smaller wire or you will burn your house
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