(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
As others have explained, you can output a higher amperage from the machine that it receives from the wall by changing the voltage. it’s also worth noting that while welding is possible on regular residential 13A outlets it’s actually still very common for them to trip constantly when welding. This can happen either because the electrode on the welder gets very hot or it sticks to the piece you’re welding which causes a huge spike in resistance.
Latest Answers