Inverter TIG/MMA Welding Machine Technical Parameter WPEW141-TIG1160B WPEW141-TIG200B WPEW141-TIG250B Rated Input Voltage(V)/Frequency(HZ) 230/50 230/50 230/50 No Load Voltage(V) 42 42 42 Input Capacity(KVA) 4.8 6.2 7.2 Current Range(A) 10-160 10-200 10-250 Duty Cycle (%) 60% 60% 35% Efficiency (%) 85% 85% 85% Protection Class IP21 IP21 IP21 Arc Starting HF HF HF Weight(kg) 7.6 11.0 12.5 Dimensions(cm) 47.0×21.5×31.0 47.0×21.5×31.0 47.0×21.5×31.0