(UK context) How can a domestic Mig Welder be 150A, and work fine on a 13A fused, single phase domestic mains electricity supply?

Question

(UK context) How can a domestic Mig Welder be 150A, and work fine on a 13A fused, single phase domestic mains electricity supply?

In: 17

Answer 1

Ohms law: power (watts) = amps x volts. it’ll use a transformer to step up the current from 13amp 230volts to 150amp. If you look I’m guessing the power rating (watts) of the welder is around 3000w? So that should give an internal voltage of 3000/150 = 20 volts