Product Description Lt adopts internationally most advanced inverter technique. Lts power-switching component adopts IGBT modules. Lt has the following advantages: Smal in volume; Light in weight; Low power loss; High power factor; Good power supply performance; Steady and gentle arc; Little spatter and beautiful welding seams. Arc can be adjusted. Lt has the reignition voltage and current adjusting function, snick and crater filler function, with/without reignition function Type NBC-200 NBC-250 NBC-400 NBC-500 Rated current(A) 200 250 400 500 Three-phase input voltage(V) 380 Frequency(Hz) 50 Input capacity(KVA) 6.5 9.5 16.8 22.5 Output current range(A) 40-200 50-250 80-400 100-500 Welding voltage range(V) 17-31 17-38 20-42 26-45 Voltage regulating series(V) 14 Rated duty cycle(%) 60 Weight(kg) 98 135 150 215 Overall dimension(length*width*height) 650*420*660 650*420*660 620*485*860 640*685*950,