Especially suitable for welding the carbon steel, alloy Steel, stainless steel, copper, titanium and other metals. Main Parameters UnitsMain ModelsWS-200AWS-250AWS-300AWS-400A Input VoltageV/Hz220V 50/60Hz380V 50/60HzRated Input CapacityKVA4.56.48.313 Open Circuit VoltageV56545455 Output CurrentA10-20010-25010-30010-400Output VoltageV18182226Power consumption in idleW404060100Rated Duty Cycle% ...