OVERVIEW. Product Overview. Weldtech WT141ARC 140 Amp Industrial Arc Welder - 10A Plug. SPECS;. Fitted with a 10 Amp Single Phase Plug. 10-140 Amp DC Output. For 1.6-3.2mm electrodes. Includes a good quality 3M Arc & Earth Lead Set. Light & Portable with Metal Case. Includes Arc Welding Lead Set. 18 Month Commercial Warranty. Weldtech has some of the best NZ wide after-sales support, in the market. With service agents in all major centers & parts held in stock in NZ, these are ideal for trade, farm or for serious DIY users, that want the peace of mind, of local back-up.