... cutting or butti BX3-315-2, BX3-400-2, BX3-500-2, BX3-630-2 moving coil AC welding machineCharacteristics & Applications: ... building, chemical industry, agriculture machinery, construction & building and other metal structure industry.The transformer in this machine ... 2BX3-500-2BX3-630-2Power Voltage, Frequency380V, 50HZRated output current (A)315A400A500A630ARated load voltage(V)32.5V36V40V44VCurrent ...