Hi guys.
For my sins I currently live in the UK. I have recently acquired a Lee 4-20 lead pot in 220v which is giving a little trouble. The thing keeps tripping my circuit breaker A GFI I think it is called in the USA. It also buzzes in use until it trips the breaker. Now I don't know if the buzzing is normal but I do know that tripping a 16A breaker is not for a 750 watt element. Would I be correct in thinking that as a GFI detects earth leakage there is an earth fault somewhere in the circuitry? It is obvious that it is not drawing too much power as in the UK we have to use fused plugs in this case a 13A fuse and that fuse is not blowing so it has to be an earth (ground) leak. Yes?