OVERVIEW. Product Overview. The Telwin Superior 400CE is a high power multi process welder which is great for heavy duty applications on industrial worksites. Perfect for Mig welding a range of steels and Arc welding a range of electrodes up to 6mm diameter The optional wire feeder and connection cables are able to be removed, therefore allowing this welder to be easily transported. Key Features: Multi Process. 3 Phase. Remote controls. Power factor correction