Advanced IGBT inverter technology, stable performance, 85% working efficiency, samll no-load lose ,easy to use, convenient to carry; 2.high duty cycle:100% in normal temperature(means it can continue working for 24 hours without stop), even in the temperature 40, it can arrive to 60% working in the full current 3.Precise control system: PWM Pulse Width Modulator, closed loop control system Inverter welder Item no: RAC-400 Input voltage 220~230V Frequency 50-60Hz Input capacity:8.7 KVA Current range: 20-400A.
