What's the minimum breaker I need for a 110 amp 220v arc welder?

[Michael Shaffer]

I just bought a 110 amp 220v arc welder, does this mean I need a 110+
amp circuit breaker?

 

[Michael Shaffer]

Here's the auction

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=46413&item=4300244421&rd=1

I guess that's a buzzbox? Will this be powerful enough to weld two
peices of 2.5" diameter exhaust pipe together?

 

[Gunner]

Here's the auction

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=46413&item=4300244421&rd=1

I guess that's a buzzbox? Will this be powerful enough to weld two
peices of 2.5" diameter exhaust pipe together?

50 amp breaker is fine and yes..it will have more than enough power.
Too much in fact if you are like me..a novice welder.

Gunner


No 220-pound thug can threaten the well-being or dignity of a 110-pound
woman who has two pounds of iron to even things out. Is that evil?
Is that wrong? People who object to weapons aren't abolishing violence,
they're begging for the rule of brute force, when the biggest, strongest
animals among men were always automatically "right". Guns end that,
and social democracy is a hollow farce without an armed populace to make
it work.
- L. Neil Smith

 

[Bob Engelhardt]

Here's the auction

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=46413&item=4300244421&rd=1

I guess that's a buzzbox? Will this be powerful enough to weld two
peices of 2.5" diameter exhaust pipe together?

Even though the auction says "230v @ 110a" it's really 110a _output_.
For which a 50a breaker is optimum. I run my 225a Lincoln on a 30a
breaker 'cause I don't use the higher amps ever (120a occasionally).

The minimum amperage on your welder is 45, which is pretty high for
tailpipe. Tailpipe is a very challenging weld even with a lower
amperage. Burn through is the problem.

Bob

BTW - I Googled "Buffalo arc welder" and got the toolsteal site. The
welder msrp is $65.99, but they have it on sale for $69.30!! Some
"sale".

 

[Michael Shaffer]

LOL yea I saw that. I also didn't get a very good price on it on ebay.

 

[Rusty]

I just bought a 110 amp 220v arc welder, does this mean I need a 110+
amp circuit breaker?

If you are in England that would be 230 volts, 50 Hz. However, if
you are in North America, then it is 240 volts, 60 Hz.

The 110 amps will be the secondary current. The primary side
current will likely be 1/4 of that or around 30 amps max. If it is
a fairly recent welder it should have a capacitor inside to correct
the phase angle somewhat, which helps to minimise the current draw
at max amps.