... 400-2, BX3-500-2, BX3-630-2 moving coil AC welding machineCharacteristics & Applications: Manual operated, single, one phase ... is compact structure, stable arc, low noise, small vibration, high efficiency, wide current adjustment range, convenient using, good durability, ... (A)315A400A500A630ARated load voltage(V)32.5V36V40V44VCurrent adjusting range(A)50-135/120-400A70-170/150-500A90-220/210-630A100 ...