Am I reading Google correctly that my current (unused) TT-30 110v outlet can swapped to a 6-30 or 6-50 receptacle and the existing wiring (if it is 3-wire 10ga) can be configured for 220v?Yeswelder MIG-205DS(3) Angle Grinders at the ReadyJust a hobbyist trying to improve
Reply:Yes, you just make your neutral wire (at the panel) another hot phase. and.... mark the wire accordingly if you want to keep with codes
Reply:Yes a straight 240 volt outlet uses same amount of wires as a 120 volt outlet.120 volt Hot-Neutral-Ground = 120-Return-Ground = Black or Red-White-Green240 volt Hot-Hot-Ground = 120-120-Ground = Black-Red-GreenBasically pulling the white out of the neutral bar and adding it to the second pole of a 240 volt breaker that you have your other hot going in.Last edited by danielplace; 10-30-2020 at 09:27 AM.
Reply:Usually you would not use a 6-50 receptacle on 10 gauge wire, but the 6-30 would be ok. There may be exceptions to this for a dedicated welding circuit.When you use the white for a second hot you should wrap the wire in red tape on both ends to designate it as a load carrying wire.Miller Trailblazer Pro 350DMiller Suitcase MIGMiller Spectrum 2050Miller Syncrowave 250DXLincoln 210MP
Reply:
Originally Posted by scsmith42
Usually you would not use a 6-50 receptacle on 10 gauge wire, but the 6-30 would be ok. There may be exceptions to this for a dedicated welding circuit.When you use the white for a second hot you should wrap the wire in red tape on both ends to designate it as a load carrying wire.
Reply:
Originally Posted by danielplace
It was a load carrying wire when it was a neutral too. Neutral's carry the same load as the hot does. You are phasing it from white to red/black/blue to show it is has voltage potential to neutral/ground. That is actually how a 120 volt GFI works. It puts a current transformer around the hot and another around the neutral and constantly compares them to each other. If the hot EVER exceeds that of the neutral then it knows current is returning somewhere other than back through the neutral and trips the device.
Reply:
Originally Posted by William McCormick
If you were running new wire you would be required to run red and black wires for anything #6 and under. But since it is there you should mark each end with red tape for identification purposes. But each wire carries the same amperage as the other no matter the voltage, or whether or not one of the wires is a neutral wire. Sincerely, William McCormick
Reply:OK, hear me out on this idea please:This is the original 220v to 110v adapter that my welder came with:
Can I leave the current TT-30 120V receptacle, use a 10/3 30' RV extension cord:
and this adapter:
With a big giant sign:
Besides breaking a bunch of codes - would it work soundly all the same? I would be replacing the single 30a breaker with one of the double 30a "mini" breaker in the box as well).Last edited by Shootr; 11-07-2020 at 07:02 PM.Yeswelder MIG-205DS(3) Angle Grinders at the ReadyJust a hobbyist trying to improve
Reply:It is almost interesting/surprising they sell a welder/anything with a adapter made like that well not from China I guess. Yes that would physically work but probably not good idea. I see why though as you already have the stuff. Tempting as hell huh ? I believe it would work just fine.Why not just change the outlet to a 6-50R and get a 50amp welder extension cord and plug it in properly. Of course feed it only 30 like you planned.Same/similar amount of work but so much closer to being done right. More money if you already have the other stuff.Last edited by danielplace; 11-08-2020 at 09:33 AM.
Reply:There would be no separation of the Ground and Neutral - If it is a straight run to the main panel-ok- works just like the old 3-wire appliance circuit.If it is from a sub-panel then it is definitely not advised.But as Daniel said, just replace the TT-30 receptacle with a 6-50r and install the Double pole 30amp CB you mentioned and call it a day.Last edited by Broccoli1; 11-09-2020 at 06:58 PM.Ed Conleyhttp://www.screamingbroccoli.com/MM252MM211 (Sold)Passport Plus & Spool gunLincoln SP135 Plus- (Gone to a good home)Klutch 120v Plasma cutterSO 2020 benderBeer in the fridge
Reply:
Originally Posted by Broccoli1
There would be no separation of the Ground and Neutral - If it is a straight run to the main panel-ok- works just like the old 3-wire appliance circuit.If it is from a sub-panel then it is definitely not advised.But as Daniel said, just replace the TT-30 receptacle with a 6-50r and install the Double pole 30amp CB you mentioned and call it a day.
Reply:
Originally Posted by danielplace
The ground was staying the same ground it always was and the old 120 volt neutral is becoming another hot leg so it is 240 volt. I do not think there would be a ground/neutral separation issue to do with what he suggested. If the ground was in place properly for 120 volt then it would be correct for the 240 volt conversion. The neutral isn't a neutral anymore. The issue is really just wiring 120 plugs at 240 volt then using 125 volt rated cord and adapter with 240 but since current is not exceeding that of cords/plugs then it would work just be wrong as we know what is right and this is not it for sure.
Reply:
Originally Posted by Broccoli1
The adapter that came with the machine looks like it takes 240v (6-50p) down to a 120v 5-15r.
Reply:
Originally Posted by danielplace
I see what your thinking now. It doesn't take 120 from 240. It puts 240 out of a 120 outlet. Doesn't pull off one leg and ground for sure.That is the 240 volt adapter. It is how you actually run the machine on 240 volt. It isn't converting 240 to 120. It isn't swapping anything around. Ground stays ground. Never uses ground for a neutral either. They aren't pulling 120 out of the 240. They are merrily feeding 240 out of the 120 configuration. Then you flip the voltage switch to 240.
Reply:
Originally Posted by Broccoli1
That is a smoke release mechanism fo' sho'forget that 5-15 plug is 240v and plug in a regular 120v machine ... poof.
Reply:They weren't thinking. This is how it should have been 6-50P 50 amp 240 volt plug on the machine and then a 50 amp 240 to 120 volt adapter. Use the adapter for when you are using the machine on 120 volt not the other way around. https://www.amazon.com/PRIMEWELD-TIG...NsaWNrPXRydWU=
And done like the Pro Tig 165 is even better. Twist lock on machine and two separate tails for 120 volt or 240 volt. Somebody was thinking. Last edited by danielplace; 11-11-2020 at 04:01 PM.
发表于 2021-9-1 23:18:18
