TIG/MMA, suit to wide range of power supply voltage,energy saving. welding stable,HF arc starting,suit for all kinds of rods. Power supply:3PH AC380V±15% Frequency:50/60HzPreflow time 0.2sPost-flow time:2-5SEfficiency:85%Rated duty cycle:60%No load voltage: 56V Rated apacity:9KVA,TIG Current:10-315AARC current:20-315ATIG:22.6V, ARC:32.6V TIG/MMA inverter welding machine