[_Ogre]

Originally Posted by 1972K20

I have a 220V Miller Thunderbolt AC/DC stick welder. I was looking at the specs on it to understand what amperage it needs to run properly. Here's what I found:
https://www.millerwelds.com/-/media/...d8-0.pdf?la=en

It says "Amps input at rated output 230V: 47.5" So, is it that the amps needed? What happens if the power source does not provide that amount of amperage?

This generator shows it has a 240V/50A outlet.
https://www.tractorsupply.com/tsc/pr...5?cm_vc=-10005
Is that what is needed for the welder to work properly?

you'd be better off buying a new mig welder than trying to buy a 50 amp generator. to convert watts to amps divide watts by voltage. the generator you linked to is 8000 watts, divide by 240 volts = 33.3 amps. reverse the math: 50A X 240V =12000W minimum to run your welder. you've just jumped from a $900 generator to a $2500 generator

i run my whole house on a $500 5000W, 20A generator, i'm on a well, so no power, no flushing the toilets. i can do most anything with the generator: wire weld remote locations, furnace at house and shop, well water, washer, dryer, computer and internet. i just can't do everything at the same time.