Trying to make a 220v outlet in my garage to run a 220v welder

There is 2 seperate 220v hookups coming off the panel.
One to the water pump, and another going to a wall outlet with the style plug of the pic attached.
I want to switch the air conditioner style plug to a 6-50P.
The air con style plug is run with 2- 20 amp breakers.
The air con plug reads 250v and 15 amp.

Also, there are 2 black wires and one white wire connected to the air con style plug.

Will the 2 20 amp breakers be enough for the welder?

And on hooking it up, I guess one of the blacks will be the ground?

I'm use to seeing a red wire.

Thanks

check how many amps your welder will draw. I suspect the dual 20A feeds you have now will only result in 20A per hot line feeding the outlet. I don't believe you can add them together and come up with 40A. Someone please correct me if I'm in error.

Another question I'd ask is what gauge wire is presently being used? It's been awhile since I ran my four 220 circuits in the garage, but as I recall, I used 10-3 from the breakers to the outlets. I used 30A breakers on all the 220 circuits.

Thanks

I am not positive on what gauge is being used running from the panel to the outlet, but will find out,

The dual 20amp breakers give you 20amp at each hot - not 40amp. Definitely check the wire gauge. I would really doubt that it is heavy enough if it is only for a 20amp circuit.

Either find the amperage on the welder or read the manual for how much power it needs. A 20 amp 220 circuit isn't gonna cut it, and using that style plug is just stupid. You are going to probably end up running a new circuit with some #8 or #6 wire and going to a range style plug if you want to do it reasonably.

Thanks for the help everyone.

I have been confirmed that the exsiting breakers and wire is not going to cut it.
Instead of rewiring through the rafters and down the wall, it looks like I will just run a outlet off of the breaker with some 10/3, and once I am told I can up the amps on the breakers, this will be done.


Smurf, I appreciate the help, but I never said I was going to use the air con style plug:shaking:
My question was how to get rid of the air con style plug and replace it with the 6-50P style.

Either find the amperage on the welder or read the manual for how much power it needs. A 20 amp 220 circuit isn't gonna cut it

You'd be surprised... you can max out the duty-cyle with an average 160-175A machine and still not pop that breaker. I have to push my 200A machine pretty hard to make it trip (its actually my compressor circuit, that I steal for the welder when it's more handy).