Ac Arc electric welders1) electric welders is Single-phasae,on-wheel,fan-cooled,high duty cycle; 2) Professional welding,stepless current adjustment,suit for various electrodes; 3) High efficiency, simple structure, easy to opearte and maintain, 4) Aluminum and copper transformer optional ; 5) Widely applicable for welding low carbon steel and low alloy steel structure. 6)forced air cooling structure Model BX1-210BX1-250BX1-315BX1-400BX1-500Rated Input Voltage(V)1Ph3801Ph3801Ph3801Ph3801Ph380Rated Input Capacity(KVA)1518.523.53238No-Load Voltage (V)5560656576Rated Welding Current (A)210250315400500Current Range (A)50 21060 25060 31580 40010 500Rated Duty Cycle (%)2035353535Weight (Kg)5962738492PackingWOODEN CASEWOODEN CASEWOODEN CASEWOODEN CASEWOODEN CASEdiameter of rod(mm)0-3.20-3.20-4.00-5.00-5.0