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Posted by Jimmie D on June 6, 2007, 12:02 pm
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I had some welding I needed to do in my back yard so I hauled the welder out
of the shop and hooked it up at the house to my hot tub. The Breaker pops
even though it is the right current rating, 50 AMPS. I think this is because
it is a ground fault breaker and I dont believe you can use a welder with a
GFCI breaker. I kind of suspected this before I hooked it up.
Jimmie
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Posted by Ignoramus27187 on June 6, 2007, 12:12 pm
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> I had some welding I needed to do in my back yard so I hauled the welder out
> of the shop and hooked it up at the house to my hot tub. The Breaker pops
> even though it is the right current rating, 50 AMPS. I think this is because
> it is a ground fault breaker and I dont believe you can use a welder with a
> GFCI breaker. I kind of suspected this before I hooked it up.
My guess is that there is something wrong with the welding machine if
it pops a GFCI breaker due to ground fault. Does this happen when you
turn it on, start welding, does it happen on high amps only, etc?
i
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Posted by David Billington on June 6, 2007, 1:33 pm
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Jimmie D wrote:
>I had some welding I needed to do in my back yard so I hauled the welder out
>of the shop and hooked it up at the house to my hot tub. The Breaker pops
>even though it is the right current rating, 50 AMPS. I think this is because
>it is a ground fault breaker and I dont believe you can use a welder with a
>GFCI breaker. I kind of suspected this before I hooked it up.
>
>Jimmie
>
>
I have various welders running off a 30A 230V supply and the GFCI covers
the entire house and never a problem with any welder tripping a breaker
or GFCI. One point though when the house wiring was done the garage 30A
supply has the heaviest duty domestic breaker available in the UK
because of the type of loading the various kit in the garage would give
it. As Iggy asked at what point does it trip?.
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Posted by Steve B on June 6, 2007, 2:24 pm
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>I had some welding I needed to do in my back yard so I hauled the welder
>out of the shop and hooked it up at the house to my hot tub. The Breaker
>pops even though it is the right current rating, 50 AMPS. I think this is
>because it is a ground fault breaker and I dont believe you can use a
>welder with a GFCI breaker. I kind of suspected this before I hooked it up.
>
> Jimmie
>
Breakers heat up and cool down many times over their lifetimes. The metals
inside change. They can become "weak". For a cheap fix, replace it with an
equivalent straight breaker (no GFCI), and if it still pops, look for
another problem. Even if it's good, and keeps popping, the GFCI will just
cause you headaches when welding, and your work will suffer.
What I'd do, anyway.
Steve
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Posted by Jimmie D on June 6, 2007, 2:54 pm
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>
>>I had some welding I needed to do in my back yard so I hauled the welder
>>out of the shop and hooked it up at the house to my hot tub. The Breaker
>>pops even though it is the right current rating, 50 AMPS. I think this is
>>because it is a ground fault breaker and I dont believe you can use a
>>welder with a GFCI breaker. I kind of suspected this before I hooked it
>>up.
>>
>> Jimmie
>>
>
> Breakers heat up and cool down many times over their lifetimes. The
> metals inside change. They can become "weak". For a cheap fix, replace
> it with an equivalent straight breaker (no GFCI), and if it still pops,
> look for another problem. Even if it's good, and keeps popping, the GFCI
> will just cause you headaches when welding, and your work will suffer.
>
> What I'd do, anyway.
>
> Steve
>
Apparently I have a bad GFCI breaker, this may be what was wrong with the
hot tub too. I replaced the 50 amp GFCI breaker located at the hot tub with
a simple disconnect and replaced the 50 amp Breaker in the main panel with a
GFCI breaker, no more problems. For the next week this will be my temporary
welder hookup.
Jimmie.
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> of the shop and hooked it up at the house to my hot tub. The Breaker pops
> even though it is the right current rating, 50 AMPS. I think this is because
> it is a ground fault breaker and I dont believe you can use a welder with a
> GFCI breaker. I kind of suspected this before I hooked it up.