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Old 04-28-2012, 01:53 PM   #1
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Stick welder receptacle


I bought a Lincoln ac-225-S arc welder from someone and he gave me a 30' 10/3 extension cord with it. The specs on the welder panel call for 50 amps max input on 20% duty cycle. Is the 10 ga. wire really sufficient for this welder? I will also be installing a receptacle for the welder, will a 30 amp breaker on 10/3 do the job or do I need to move up to 8 ga. on 40amp or 6 ga. on 50 amp? If I go up to a 40 or 50 amp breaker can I even use that extension cord? I doubt I would ever weld anything thicker than 3/16" to 1/4" max.

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Old 04-28-2012, 03:38 PM   #2
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Stick welder receptacle


I have a 225 amp Lincoln welder and the factory cord is #12 wire with a molded 50 amp plug - NEMA 6-50.

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Old 04-28-2012, 04:03 PM   #3
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Stick welder receptacle


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Originally Posted by a7ecorsair View Post
I have a 225 amp Lincoln welder and the factory cord is #12 wire with a molded 50 amp plug - NEMA 6-50.
Are you absolutely certain?
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Old 04-28-2012, 04:04 PM   #4
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Stick welder receptacle


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I will also be installing a receptacle for the welder, will a 30 amp breaker on 10/3 do the job or do I need to move up to 8 ga. on 40amp or 6 ga. on 50 amp?
You are installing a 50A receptacle in a residence. Regardless of the odd codes for welders just use #6 on a 50A breaker.
It's the safest thing in the long run.
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Old 04-28-2012, 04:17 PM   #5
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Stick welder receptacle


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Originally Posted by Speedy Petey View Post
Are you absolutely certain?
This was my first reaction too.
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