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Thread: Extension cord

  1. #1

    Question Extension cord

    I have a Millermatic 252-I was wondering if I could safely use my 60 ft 6/3 wire extension cord. I believe the welder comes with 8/3 wiring. Im using a 220 50 amp power source.

  2. #2
    Join Date
    Sep 2002
    Location
    Clark County, NV
    Posts
    2,696

    Default

    That cord is plenty. Go for it!

  3. #3
    Join Date
    Feb 2006
    Location
    Santa Clara, Ca
    Posts
    68

    Default

    I'm not a electrician, but 6/3 wire sounds to small for 50 amps over a 60ft run. Your going to have a pretty big voltage drop when you start drawing some high current. When I re-wired my detached garage, it was a 40ft run and I put 4 guage wire in and according to code I can safely run up to 70 amps.

  4. #4
    Join Date
    Sep 2002
    Location
    Clark County, NV
    Posts
    2,696

    Default

    First, he'll only pull 50A when welding at full-tilt. Second, his duty-cycle will keep him in check, even at that distance, which is really not that long, IMPO. Many runs even in residential settings are over 60 feet, and #6 wire is rated for more than 60A in many situations. I wouldn't even give this a second thought.

  5. #5
    Join Date
    Aug 2006
    Location
    near rochester NY
    Posts
    9,881

    Default

    wile i would tend to agree with MAC on it i would look in my manual, dosent it have a chart for cords and whats needed for what distance.
    i'll look around i think i have one but like mac said the 252 only pulls that at max and then for a short time.
    if it was mine i would go for it, but hey thats me. i'll see if i can dig up the chart if you cant find one in the manual.
    thanks for the help
    ......or..........
    hope i helped

    feel free to shoot me an e-mail direct i have time to chat. james@newyorkmetalart.com
    summer is here, plant a tree. if you don't have space or time to plant one sponsor some one else to plant one for you. a tree is an investment in our planet, help it out.
    JAMES

  6. #6
    Join Date
    Mar 2007
    Location
    Deltaville, VA
    Posts
    2,239

    Default

    MAC is the expert here. If he says it's enough, you can take it to the bank.

    In my owner's manual for the MM 251 they specify a minimum conductor size in AWG of 8 with a maximum length of 127' (@230V). Your #6 AWG wire is more than adequate to power the MM 252.

    Relax and burn some wire.

  7. #7
    Join Date
    Mar 2007
    Location
    Oahu, Hawaii
    Posts
    2,469

    Default

    hehehe.....
    I'm not late...
    I'm just on Hawaiian Time

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