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  • Problem with 220

    I have a dryer outlet in the garage which i changed to the 6-50R for the welder. Its run to a 2 pole 30 amp square D breaker. It's a 4 wire set up. My problem is (amongst others) when i tested the outlet it only read 120 volts instead of the needed 220 for the welder. I tried looking up some kind of answer on search engines and the forum and couln't find any. Sorry if you've heard this before, but i'm totally lost. Any help is greatly appreciated.


    Thanks alot,

    Justin

  • #2
    Which 3- wires out of the 4 that were there did you use for the new 6-50r?

    You should disconnect the White at both ends and tape off - the Neutral is not used for the 240v 6-50R
    Ed Conley
    http://www.screamingbroccoli.net/
    MM252
    MM211
    Passport Plus w/Spool Gun
    TA185
    Miller 125c Plasma 120v
    O/A set
    SO 2020 Bender
    You can call me Bacchus

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    • #3
      Originally posted by Broccoli1 View Post
      Which 3- wires out of the 4 that were there did you use for the new 6-50r?

      You should disconnect the White at both ends and tape off - the Neutral is not used for the 240v 6-50R

      The black and red for the hots and the bare wire for the ground, the white is taped off and tucked away. I'm trying to locate the other end of the neutral at the box. Thanks for the quick reply.


      Justin

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      • #4
        How did you take the reading?
        Ed Conley
        http://www.screamingbroccoli.net/
        MM252
        MM211
        Passport Plus w/Spool Gun
        TA185
        Miller 125c Plasma 120v
        O/A set
        SO 2020 Bender
        You can call me Bacchus

        Comment


        • #5
          I tapped off both ends of the neutral still no luck. I used a solenoid voltmeter to get the reading and then i used a digital multimeter. reads 120 volts everytime.

          Justin

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          • #6
            Measure it at the breaker...
            Professional Auto Mechanic since 1974
            My own shop since 1981
            Cya Frank

            Comment


            • #7
              Where are you taking your measurement?

              Where are you taking your measurement? You should have 120vac from ground to either hot . . And you should have 220vac from hot to hot if using a volt meter . . . make sure you are getting contact on the inside of your receptacle.

              On some heavy duty receptacles you have to really reach in with your probes to make contact. Sometimes on less expensive meters the probes are short . . . Also you have to remember a 220 vac receptacle is designed for a plug that will have 1/8" thick prongs, so you might be going in the middle . . . Wiggle around a little while watching your meter . .\My Flukes have no problem but my little Tripplet 310 does . . .

              As to using a WIGGY . . . I limit that to establish hot / no hot for quick safety check, not trouble shooting . . .

              Hope that helps . . . .
              Last edited by Wacko Welder; 07-08-2008, 10:51 PM.
              Millermatic 251
              Lincoln AC/DC "Tombstone"
              Milwaulkee Grinder 4 1/2"
              Clark Grinder 4 1/2"

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              • #8
                Did you check the voltage at the breaker yet?
                On some boxes you can plug the double pole breaker in, in an incorrect position & cause the problem you're having.
                Check & see what you have at the breaker.
                HTH
                Professional Auto Mechanic since 1974
                My own shop since 1981
                Cya Frank

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                • #9
                  I went to the panel checked everything and it turns out the breaker was faulty, I replaced it to see if that would help and there it worked. Thank you guys alot for your help, if your ever in the Vegas area I'll buy you a beer. Now it's off to buy my welder.

                  Thanks again!
                  Justin

                  Comment


                  • #10
                    breaker guy . . .

                    Originally posted by Frank865 View Post
                    Did you check the voltage at the breaker yet?
                    On some boxes you can plug the double pole breaker in, in an incorrect position & cause the problem you're having.
                    Check & see what you have at the breaker.
                    HTH

                    The breaker guy got it . . . . I'm an "old" instrument tech . . . we are hard headed, we "check the loop" as a whole first . . . then trouble shoot backwards . . . but for power I think your source first (the breaker) is best way to go . . .

                    Steve
                    Millermatic 251
                    Lincoln AC/DC "Tombstone"
                    Milwaulkee Grinder 4 1/2"
                    Clark Grinder 4 1/2"

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                    • #11
                      We should get in the habit of calling it what it is, its 120/240.

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                      • #12
                        Originally posted by Sberry View Post
                        We should get in the habit of calling it what it is, its 120/240.
                        Around here the voltage usually runs 112/225...
                        Professional Auto Mechanic since 1974
                        My own shop since 1981
                        Cya Frank

                        Comment


                        • #13
                          Originally posted by Frank865 View Post
                          Around here the voltage usually runs 112/225...

                          Bit on the low end...... 110,220,440, &550 are obsolete voltages.

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