Lee Butcher
New Member
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- Cambs
I am in the process of changing my Telwin Mastermig 400 back from 3 phase 415v to single phase 230v as I have sold it someone who only has single phase power. When I first had the welder many years ago it was connected single phase. I have changed the board round inside. The thing I need help with is the connection for live and neutral. I assume L1 would be live connection but where is the neutral connected to from the mains supply?