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  #11  
Old 02-10-2020, 02:06 PM
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Quote:
Originally Posted by bigb View Post
I'd be curious to know the duty cycle of the OPs machine.
It is on the name plate in the picture.
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  #12  
Old 02-10-2020, 02:10 PM
bigb bigb is offline
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Originally Posted by digger doug View Post
Honestly, it's only a 140 amp machine.
Lincoln (IIRC Miller too) makes a 140 amp plug in the wall lunchbox
machine, and it only needs a 20 amp 120 vac outlet.
https://www.homedepot.com/p/Lincoln-...14-1/100670934
Yes my friend has that machine and he just plugs in into any 20 amp circuit that is not in use. I have a Maxstar 115/230 volt machine (automatically knows what voltage you are plugged into, no switches to throw, just use an adapter for the wall plug) If you look at the label it shows 28 and 23 amps input but the I1eff allows a 20 amp circuit on 115 and a 15 amp circuit on 230.
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  #13  
Old 02-10-2020, 02:48 PM
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Quote:
Originally Posted by Shade Tree Welder View Post
It is on the name plate in the picture.
I'm seeing it but I'm having a hard time believing it. It is rated higher than my $1,500 Miller
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  #14  
Old 02-10-2020, 09:23 PM
vyork vyork is offline
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Smile Mig Welder Power Outlet

I going to replace the plug with a Nema 5-30P. I did try an adapter to a 110 plug on a 20 amp breaker and and on full power it would trip after a about 10 to 15 seconds. I'm new to welding and I bought it just for fun. I paid a $120.00 on Amazon for the welder and could not justify buying a $1,000 dollar welder that I would rarely use. Other than the confusion of the plug being a 2 pole when the welder is a 110 volts, it has worked flawlessly. Thanks I really appreciate everybody's help!
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  #15  
Old 02-10-2020, 09:37 PM
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In your spare time post a picture of the wire feed unit they can be a weak link with import welders.
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  #16  
Old 02-11-2020, 01:50 AM
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12 cord has short circuit capability of 50A, it is protected for thermal by the applied load. No matter how bad azz a guy is,, running hot and fast he can't do more than the machine can. I think I would be finding out why it came wrong voltage end.

Last edited by Sberry; 02-11-2020 at 01:56 AM.
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  #17  
Old 02-11-2020, 06:57 AM
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Quote:
Originally Posted by vyork View Post
I going to replace the plug with a Nema 5-30P. I did try an adapter to a 110 plug on a 20 amp breaker and and on full power it would trip after a about 10 to 15 seconds. I'm new to welding and I bought it just for fun. I paid a $120.00 on Amazon for the welder and could not justify buying a $1,000 dollar welder that I would rarely use. Other than the confusion of the plug being a 2 pole when the welder is a 110 volts, it has worked flawlessly. Thanks I really appreciate everybody's help!
Tripping a 20 amp breaker with a 140 amp lunchbox machine ?

Uhm yeah.

Is this thing just a large short circuit inside ?
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  #18  
Old 02-11-2020, 10:26 AM
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Nema 5-30P is exactly what I was thinking.. Start there...
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  #19  
Old 02-11-2020, 10:50 AM
bunkclimber bunkclimber is offline
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Default MIG welder power outlet

upgrade it to a NEMA 5-30 should suffice..put some time on the machine and see how it does..Next thing in line is the cheap red 15amp rocker switch that will melt and fuse closed under continuous load. Maybe you have gotten lucky and the manufacturer designed it with a line contactor/relay to handle the load, not the switch. Best of luck with it,watch your duty cycle.
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  #20  
Old 02-11-2020, 11:02 AM
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Quote:
Originally Posted by digger doug View Post
Tripping a 20 amp breaker with a 140 amp lunchbox machine ?

Uhm yeah.

Is this thing just a large short circuit inside ?
it has to do with keeping the output voltage up, my 120v 100amp transformer welder pulls 25 amps full out and will trip a breaker with larger rods.
seems at an average 90amps, the input amp range is in the 18 amp range.
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