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Old 02-25-2011, 09:55 AM   #1
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AC DC 225 arc welder


need to know where i can get a cheap circuit breaker for my arc welder

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Old 02-25-2011, 11:47 AM   #2
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AC DC 225 arc welder


First thing is what type panel does it go into? Any hardware store or box store like Home Depot carries most manufacturers breakers. Don't go looking for a breaker until you know what you are looking for.

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Old 02-25-2011, 02:32 PM   #3
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AC DC 225 arc welder


That welder is going to need a 50 amp breaker to run at full power. Before you go changing the breaker, check to see what kind of wire and outlet you have. If you are running a new outlet, I recommend #6 copper and a 50 amp outlet and breaker.
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Old 02-25-2011, 11:23 PM   #4
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AC DC 225 arc welder


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need to know where i can get a cheap circuit breaker for my arc welder
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Old 02-26-2011, 12:29 PM   #5
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AC DC 225 arc welder


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Originally Posted by davido30093 View Post
That welder is going to need a 50 amp breaker to run at full power. Before you go changing the breaker, check to see what kind of wire and outlet you have. If you are running a new outlet, I recommend #6 copper and a 50 amp outlet and breaker.
How do you know this is correct information? Do you have the welder specs? You know nothing about the welder. Do you know the duty cycle for example?
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Old 02-26-2011, 01:08 PM   #6
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AC DC 225 arc welder


Here are the typical specs for a welder of that type. There is little difference between brand names:

AC/DC 225/125

Input power 230/1/60
output Current/Voltage/Duty Cycle AC 225A/25V/20%
DC 125A/25V/20%
Input Current AC 50A
DC 36A

I see a lot of people trying to run them on 30A circuits.
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Old 02-27-2011, 11:51 AM   #7
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AC DC 225 arc welder


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Originally Posted by davido30093 View Post
Here are the typical specs for a welder of that type. There is little difference between brand names:

AC/DC 225/125

Input power 230/1/60
output Current/Voltage/Duty Cycle AC 225A/25V/20%
DC 125A/25V/20%
Input Current AC 50A
DC 36A

I see a lot of people trying to run them on 30A circuits.
Okay. You are saying most welders are just like the specs you provided? I mean this is a standard or something like that? I am asking. Thanks.
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Old 02-27-2011, 12:26 PM   #8
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AC DC 225 arc welder


Yes. I have seen about every brand out there and this type of small 225/125 A AC/DC welder from Lincoln, Hobart, Miller, and the odd brands from Nothern Tool, Harbor Freight, Home Depot, etc. ALL have specs that are identical or very close to those that I posted.

A lot of people try to run them on 220V/30A circuits and get frustrated when every time they try to crank up the power, the circuit breaker trips.
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Old 02-27-2011, 03:30 PM   #9
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AC DC 225 arc welder


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Originally Posted by bartakris145 View Post
need to know where i can get a cheap circuit breaker for my arc welder
Ya gotta laugh a bit at that question .....

Most of these welders come with power cords but manuals and electrical specifications are easily obtainable from online sources.

9 times out of 10 when someone asks about an AC/DC 225 they are talking about a lincoln stick welder. But setting that aside if the welder does have a power cord then let the plug on that power cord be your guide to the branch circuit and breaker sizing. Now common sense does prevail ... meaning if the power cord looks home made then by all means get the electrical specs for the input current.

One thing to watch for is that the manufacturer will give the input current at a rated output current ... this rating may not be at maximum output setting. The maximum output setting on the welder may require more input amps than its rated current. All this really doesn't matter as applied to article 630 for most welders purchased by homeowners. You just don't generally get into calculating duty cycle, ocpd and how it reduces conductor size for most non-industrial welders that are factory cord and plug.

For example if I am hired to run a branch circuit for a homeowner who just purchased a new lincoln Ac 225 stick welder I only need to see the plug on the end of the factory power cord ... it's that simple. At that point I just need to determine my wiring method .. conduit or cable. Of course it would likely be prudent to review the manufacturers specifications but I think you will find that it isn't going to tell you much more than the plug on the power cord did ...
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Old 02-27-2011, 04:49 PM   #10
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AC DC 225 arc welder


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Of course it would likely be prudent to review the manufacturers specifications but I think you will find that it isn't going to tell you much more than the plug on the power cord did
...

I agree with you. I posted the specs as a general guidline for those who seem to not know. The specs that I posted are input at max rated output.

Sometimes people want to know what they need before actually seeing the welder in question.
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Old 02-27-2011, 06:19 PM   #11
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AC DC 225 arc welder


Unless he has an obsolete panel, breakers are cheap enough anyway!

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