Thermal Arc GMS400 amp draw

I did a little test to see what the input current is while stick welding with different rods. This experiment was done on a 20 amp 240 outlet. I also have a 50 amp plug, but the 20 amp plug is closer and doesn't require a 25 foot 8 gauge cord. I usually use the small plug for light duty welding, but wasn't sure what I could safety get away with.

I wanted to do the same test with the 50 amp plug, had no easy way of getting the clamp meter around a single conductor without getting into the breaker box.
The tests were done with a Thermal Arc 400 GMS running on 240 single phase. It was set on stick mode, the dig knob was set on 2 out of 10, and the hot start was at 5 out of 10.
The first test was done with a 3/32 7018 at 90 amps.
The second test was a 1/8 6010 5p at 90 amps.
The third test was an 1/8 7018 at 125 amps.
The forth test was with a 5/32 7014 at 160 amps. I long arced the second half of the 7014 test to see how it affects current draw.

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• GMAW
• MMA
• Thermal
• Arc
• stick
• welding
• 6010
• 7014
• 7018
• 3/32
• 1/8
• 5/32
• GMS
• 400
• 400GMS
• clamp
• meter
• fluke
• 240
• 20
• amp
• 50
• nema
• 6-50