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Lincoln Buzzbox work on my 220 circuit?

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AJ

10-24-2001 20:51:17




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Wife got a me a Lincoln AC-225 arc welder for my b-day since it was what I learned to weld on in school. The place we live in has 220 in the garage but I'm not really familiar with 220. The fusepanel for the 220 has two breakers in it, each labeled 30 amps. Is that enough for this welder? This one is a couple years old, I read the news ones say a 50 amp breaker should be used. I appreciate the help.

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Al English

10-26-2001 16:30:49




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 Re: Lincoln Buzzbox work on my 220 circuit? in reply to AJ, 10-24-2001 20:51:17  
Hi AJ,
Check the welders manual, specifications tag, or contact the manufacturer for power requirements. In 1970 I bought my first welder, a 225 Amp Lincoln. As I recall the book that came with it specified a 30amp 220volt supply. For several years the clothes drier and the welder took turns using a 30amp outlet. In spite of regular and heavy usage the welder never blew a fuse. Whatever you do, don't install bigger fuses than should be used with the wiring they feed...Al English

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Bigdog

10-25-2001 04:25:22




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 Re: Lincoln Buzzbox work on my 220 circuit? in reply to AJ, 10-24-2001 20:51:17  
I would suggest you re-wire for the 50 amp circuit. Use at least a #8 wire size and a receptacle for an electric range. That should be compatible with the plug on the welder.



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ray

10-25-2001 17:35:26




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 Re: Re: Lincoln Buzzbox work on my 220 circuit? in reply to Bigdog, 10-25-2001 04:25:22  
Use a 50 amp welder recepticle - you can get them at ACE hardware and they're a different plug set up from an electric range; cost about $12. Replace breaker with a 50amp, and make sure your wire is at least 8ga - 2 hot plus ground. I wired one up this summer in the shop.
best of luck



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bob

10-28-2001 15:30:05




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 Re: Re: Re: Lincoln Buzzbox work on my 220 circuit? in reply to ray, 10-25-2001 17:35:26  
size of wire should be determined by how long run is the longer the bigger wire size must be



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Sage

10-24-2001 21:12:55




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 Re: Lincoln Buzzbox work on my 220 circuit? in reply to AJ, 10-24-2001 20:51:17  
That buzzbox does run on 220, but your wire size and 30 amp breaker going from the breaker box to the outlet plug probably will not be enough. Also the prongs are more than likely different on the welder from the 30 amp outlet. You can stick a 50 or 60 amp breaker in your box and hardwire your welder to it.



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AJ

10-25-2001 06:14:46




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 Re: Re: Lincoln Buzzbox work on my 220 circuit? in reply to Sage, 10-24-2001 21:12:55  
I was kinda thinking it was that way. I've already changed the outlet to hook up my compressor which only takes a 15amp circuit. The breakers in the house going to the 220 in the garage are 30 amp too so I'm guessing the wire in between isn't big enough to put in 50 amp breakers. 8ga. would probably be needed so I'll check and if it's not that or bigger I'm not going to even mess with it. Maybe just sell that welder and get a 110 wire feed.

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Joe

10-25-2001 07:50:15




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 Re: Re: Re: Lincoln Buzzbox work on my 220 circuit? in reply to AJ, 10-25-2001 06:14:46  
What amp will you run the welder output at? It'll only draw 50amps when youve got the welder
cranked up all the way. I've got mine set up similar- on 30 amp circuit. I can weld at 120amps
output & not blow the circuit.



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AJ

10-25-2001 17:53:23




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 Re: Re: Re: Re: Lincoln Buzzbox work on my 220 circuit? in reply to Joe, 10-25-2001 07:50:15  
That's kinda what I was thinking. I just checked out the wiring from the main box to the garage and it's a lot heavier than I thought, I believe it's 6ga. Here's exactly what it says...

ESSEX 6 TYPE USE-2 OR TPE RHH OR TYPE RHW-2 XLPE 600 VOLTS EL11134K(UL)

I went to the Essex website and looked up the specs on the XLPE wire, the measurements for outside insulation are almost dead on and the strands are the same so it's got to be the 6ga. I shouldn't have any problem upgrading my inside and outside breaker to 50amp then.

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Old Sparky

10-25-2001 18:08:51




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 Re: Re: Re: Re: Re: Lincoln Buzzbox work on my 220 circuit? in reply to AJ, 10-25-2001 17:53:23  
AJ, your last comment seems to indicate that your setup is OK. The 50 amp breaker and receptacle will work nicely. Due to the low duty cycle of these welders, the NEC (National Electrical Code) in Article permits use of supply conductors to welders of 20% duty cycle to have ampacity of 45% of the nameplate amperage. 30% duty cycle is 55% amperage. This is because the time for drawing power is so short compared to the resting time. 20% is very usable for the home shop and I used one for years. Such a welder could use #10 wire and still have the 50 amp breaker. Some inspectors do not know this. Now my welder is 100% duty cycle except is 60% at the top of the amperage range. One gets spoiled by that. As a practical matter, stick electrode welders cannot be operated 100% of the time, necessary to change electrodes and chip slag for continuing the weld.

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