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LarryG

06:46AM | 10/18/09
Member Since: 07/22/04
530 lifetime posts
Bvelectrical
Hi Bob,

i bought a used welder that requires a 50 amp circuit.

what size wire do you recommend i use with a 50 amp double breaker?

TimBonham

07:06PM | 10/18/09
Member Since: 01/09/07
197 lifetime posts
For a 50A load, you need #6 copper wire, if it's a distance of about 20 feet. If it's longer than that, you need to go up to a #4 copper.

LarryG

02:50AM | 10/19/09
Member Since: 07/22/04
530 lifetime posts
sounds good

househelper

06:30AM | 10/21/09
Member Since: 03/31/05
265 lifetime posts
If use 6ga wire at the full load of 50A, you would be good to about 130ft before voltage drop became much of an issue.

LarryG

07:10AM | 10/21/09
Member Since: 07/22/04
530 lifetime posts
i wonder why that other man said 20 ft?
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