220 Volt Welder Circuit
#1
03-21-19, 05:24 PM
220 Volt Welder Circuit
What size circuit breaker, wire gauge? I have an 8 foot run. Conduit is installed.
Thank you, Charlie.
Thank you, Charlie.
#2
03-21-19, 05:33 PM
Group Moderator
Welcome to the forums.
Look at the ID tag on your 240v welder. It should tell you the operating current.
What does it say ?
Look at the ID tag on your 240v welder. It should tell you the operating current.
What does it say ?
#3
03-21-19, 05:37 PM
Oh, have not purchased the welder yet. Just setting up and getting ready. I need a circuit that I can also use for 220 V compressor, separately of course.
TY, Charlie.
TY, Charlie.
#4
03-21-19, 05:38 PM
Group Moderator
Usually a compressor runs on a 240v 20A circuit and a welder can be from 30A to 50A.
Two circuits.... one for each.
Two circuits.... one for each.
#5
03-21-19, 06:15 PM
It's probably gonna be 30 Amp. Can I run 3 #12s and if I do go to 40 A is 12 gauge still OK?
TY, Charlie.
TY, Charlie.
#6
03-21-19, 07:04 PM
240v requires 2 wires (hot-hot) not three. #12 is good for 20 amp on most circuits however with welders wire size may be smaller in some cases do to duty cycle.
You have the cart before the horse. You need the actual devices to plan the circuits.
You have the cart before the horse. You need the actual devices to plan the circuits.
#9
03-22-19, 07:04 AM
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Compressors that don't come with a cord and plug, usually needing greater that 20A circuits, need to be wired based on the motor name plate HP. A NEMA 50A outlet needed for most 240V welders are only rated to be used with motors up to 3HP. A NEMA 60A is 3.5HP. HP above 3.5 should be hardwired unless you used expensive PIN and Sleeve plugs.
#12
03-30-19, 07:47 AM
So I only need 2 wires for 220 Ckt. I have 3 wire plus the ground. Leave the white wire unattached and just add the Grn to the receptacle?
Charlie
Charlie
#13
03-30-19, 07:52 AM
It is 240 nominal voltage. Yes two hots and a ground. Cap the white.
What amps does the welder require? What is its duty cycle? Both pieces of info are needed to determine wire size.
What amps does the welder require? What is its duty cycle? Both pieces of info are needed to determine wire size.
#17
03-31-19, 11:49 AM
Input amps is what is needed to determine the circuit breaker and wiring needed.
What is the model number. When I search 'Titanium 200 welder' it seems it could be anything from 20 to 200 amps depending on the model.
What is the model number. When I search 'Titanium 200 welder' it seems it could be anything from 20 to 200 amps depending on the model.
#19
03-31-19, 01:35 PM
From link:
It doesn't say if 240 or 120 primary amperage. #12 wire will be fine. Use a 20 amp breaker. What plug comes on the welder?
For use on a dedicated 20A branch circuit.
#20
03-31-19, 04:11 PM
Can't find that info.
In the meantime, this popped up and couldn't resist. Cheap enough.
Charlie
In the meantime, this popped up and couldn't resist. Cheap enough.
Charlie
Last edited by ray2047; 04-01-19 at 08:32 AM. Reason: Remove link per request.
#24
04-01-19, 03:00 PM
