[AT] Wire size for welder?? Help welder people!

[George Willer]

I think the "electrician" who in an earlier post recommended using a 50 amp 
breaker on #8 wire was irresponsible.  The breaker should NEVER UNDER ANY 
CIRCUMSTANCES be larger than the safe capacity of the wire it protects.  Ask 
your insurance company.

George Willer

----- Original Message ----- 
From: "Dudley Rupert" <drupert at premier1.net>
To: "Antique tractor email discussion group" <at at lists.antique-tractor.com>
Sent: Wednesday, December 08, 2004 2:44 AM
Subject: RE: [AT] Wire size for welder?? Help welder people!


> John,
>
> I hope the following little table showing Load, Circuit Breaker and Wire
> Size transmits in a readable fashion -
>
> I took it from the NEC (National Electrical Code) probably 25 years ago 
> but
> I can't imagine it has changed.
>
> Dudley Rupert
> Snohomish, Washington
>
>      Load     Circuit Breaker        Wire Size
> =<15 amps      15 amp         Not less than #14
> =<20 amps      20 amp         Not less than #12
> =<30 amps      30 amp         Not less than #10
> =<40 amps      40 amp         Not less than #8
> =<50 amps      50 amp         Not less than #6
>
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com]On Behalf Of John Wilkens
> Sent: Tuesday, December 07, 2004 8:02 PM
> To: at at lists.antique-tractor.com
> Subject: [AT] Wire size for welder?? Help welder people!
>
> If I have a 230 volt mig welder that is rated at 45 amps input current I
> assume I would want a 50 amp 230 volt breaker .  But what minimum romex
> wire gauge would I need to run 25' from the breaker box to the outlet box
> for the welder?   For years I've used 10 gauge wire for my 225 amp output
> Lincoln buzz box.     John W.
>
>                    In the wide-open spaces of NE Oregon
>
>
>
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