With IGBT inverter technology, air-cooled, function steadily, Power saving mode; operate easy and shortcut ZX7-400B(S10 ... welding inverterFeathers:MIG(MAG/CO2)With IGBT inverter technology, air-cooled, function steadily, Power saving mode;High cost performance, operate easy ... Model Item : ZX7-400B(S10) Input power voltage(VAC):3-phase AC380V±15% Input voltage frequency (Hz): 50/60HZ Output current ...