... ,stainless steel, copper , titanium and non-ferrous metal with DC TIG,aluminum alloy welding is available by AC function3,small ... ,light weight,low noiseSpecification: Item \ ModelTIP250PAC/DCInput power voltage (V,Hz) FrequencyAC380(three phase)±15%,50/60Rate input power capacity ... (KVA)6.3No-load voltage(V)42Output current range(A)10-250Rated output voltage(V)20Duty cycle(%)60No-load power( ...