Features MMA Welding Machine Dc Standard Transformer Rectifier. Dual Voltage Basic& Rutile Electrode. Overheat indicator. Input voltage selector. Medium-Heavy Duty MMA ARC WELDING MACHINE WITHOUT ACC 230-400V/3PH,300A. / @60%(220A.)-@100%(160A.) WF3000 DV WF3000(6W3.300.162.9346) Materials / Unalloyed Steel - Low-Alloy Steel - Alloy Steel Applications / Building Sites, Medium-Heavy Carpentry, Pipe Line , Off Shore Negative connection / 50mm Positive Connection / 50mm