Digital inverter welder 4 functions: manual, argon arc, gas protective, single pulse gas protective welding. Digital inverter welder4 functions: manual, argon arc, ... gas protective, single pulse gas protective welding.Input: AC380V, 50/60HzRated Input Capacity: 22KVAOutput current: 20- ... Cycle: 60%Protection Class: IP23Insulation Class: H digital inverter welder