ZX7 series Inverted DC Arc welder Functions & Features: This IGBT inverted DC arc welder features high performance, high portability, remarkable energy saving, good dynamic property, high arc stability, and easy control of welding pool.Applicable to welding of pipelines, boilers, vacuum pressure vessels and other work pieces that call for high welding quality. ZX7- 200 IGBT inverter arc welders MODELZX7-200ZX7-400supply voltage (V/Ph/ Hz)DC 220 / 1 / 50-60DC 380 / 3 / 50-60Rated supply energy(KVA)9.618.2max-load voltage(V )5867rated output voltage(V)2836Current range(A)30-20040-400Rated input current(A)43.628Rated duty cycle (%)6060Welding thickness(mm)0.8-53-7power factor0.730.93Insulation GradeFFProtection ClassIP21SIP21SSuitable welding rod dia.(mm)2-42-5Exterior dimension(mm)317*153*232565*286*432weight(KG)835Accessories1) Remote Control Box 1 pc