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  1. #11
    Join Date
    Jan 2014
    Location
    Northern West Virginia
    Posts
    37

    Default

    It would be difficult to immagine an inspector giving his approval to a 30 amp circuit using 14 gauge wire. Generally a circuit using 14 gauge wire is limited to 15 amps, and 12 gauge wire for 20 amp circuits, 10 for 30, and so on. Remember, the breaker is there to protect the wire, not the end user. Never skimp on wire, it is false economy. Besides, no one really likes the smell of their shop burning to the ground.

  2. #12
    Join Date
    Nov 2011
    Location
    Gilbert, AZ, USA
    Posts
    24

    Default I wrote a blog post about how to make an extension cord for the Miller 211 in March.

    Check out the site below and it should answer your questions. I used 8 gauge 3 wire and it was 65 feet long. I have never had a problem with it and have had it for almost 2 years (blog post came much later of course. )

    https://www.diyweldingplans.com/diy-...ord-diy-style/

  3. #13
    Join Date
    May 2010
    Location
    Central CA
    Posts
    781

    Default 252 Manual

    I just looked in my 252 manual(page 20, sec. 5-12):
    Input voltage 230
    Input amps @ rated output 46
    Max recommended fuse in amps. time delay 50 amps
    normal operating 60 amps
    I don't where a circuit breaker fits in here, but my guess is 50 amps.

    Min Conductor size AWG 8ga.
    Max conductor length 127 ft.
    Min ground size AWG 10ga.

    That said I have two store-bought extention cords both have Nema 6-50 ends,
    one is 2-8/1-10 and the other is 3/8.

    In the end I like the idea of 6ga. from a 50 amp breaker. Room to grow.
    Millermatic 252 w/30A
    Big Blue Air Pak
    Ellis 3000 Band Saw
    Trailblazer 302 Air Pak w/ Wireless Remote
    8-RC
    Dynasty 200 DX
    XMT 350 MPa w/S-74 MPa Plus
    Millermatic 211
    Passport Plus
    Spectrum 625 X-TREME
    Lincoln SA-200 Blue Tint Red Face '63
    2-Lincoln SA-200 Red Face '68
    SA-200 Black Face '59
    SA-200 Green Lite '84
    SA-200 Green Lite '80
    SA-200 Red Face '69
    SA-200 Red Face '66
    SA-200 Green Lite '81
    '70 Black Face Round Barrel

  4. #14
    Join Date
    May 2010
    Location
    Central CA
    Posts
    781

    Default 252 Manual

    I just looked in my 252 manual(page 20, sec. 5-12):
    Input voltage 230
    Input amps @ rated output 46
    Max recommended fuse in amps. time delay 50 amps
    normal operating 60 amps
    I don't know where a circuit breaker fits in here, but my guess is 50 amps.

    Min Conductor size AWG 8ga.
    Max conductor length 127 ft.
    Min ground size AWG 10ga.

    That said I have two store-bought extention cords both have Nema 6-50 ends,
    one is 2-8/1-10 and the other is 3/8.

    In the end I like the idea of 6ga. from a 50 amp breaker. Room to grow.

    Good Luck,
    Bob
    Last edited by Bob Miller; 06-19-2014 at 09:51 AM. Reason: add word
    Millermatic 252 w/30A
    Big Blue Air Pak
    Ellis 3000 Band Saw
    Trailblazer 302 Air Pak w/ Wireless Remote
    8-RC
    Dynasty 200 DX
    XMT 350 MPa w/S-74 MPa Plus
    Millermatic 211
    Passport Plus
    Spectrum 625 X-TREME
    Lincoln SA-200 Blue Tint Red Face '63
    2-Lincoln SA-200 Red Face '68
    SA-200 Black Face '59
    SA-200 Green Lite '84
    SA-200 Green Lite '80
    SA-200 Red Face '69
    SA-200 Red Face '66
    SA-200 Green Lite '81
    '70 Black Face Round Barrel

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