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Main Functions: IGBT inverter High reliability and excellent welding performance With MMA/Gouging selection switch, and can do 400A air carbon arc gouging Visual and easy to operate Cellulose welding function is optional Energy saving and small volume Technical Specifications: Rated input voltage: 3 ~ phase 380V±15%, 50/60 Hz Rated input current(A): 26 Open circuit voltage(V): 76 ±5% Output current range(A): 20-400 Arc force range: 0 ~ 200 Surge current range: 0 ~ 200A Suitable carbon size: Φ4-φ8 Duty cycle: 60% at 400A Power factor(cosΦ): 0.93 Efficiency (η): 85% Insulation grade: F Case protection grade: IP23S Dimensions (mm): 560*300*530 Net weight (kg): 33 Included: Electrode holder + cable 3Mtr Ground clamp + cable 2Mtr