Welding machinearc-200arc-250arc-400arc-500rated input voltage (v) 62 55 67 67range of welding machine(a) 20.8-28 20.8-30 21.6-36 22-40rated of welding current (a) 200 250 400 500range of output current(a) 20-200 20-250 40-400 50-500rated duty cycle (%) 100% 60% 100% 60% 100% 60% 100% 60%90a 120a 150a 190a 310a 400a 390a 500apower voltage 1phase, ac220 3phase, ac415, 5060hzrated input current (a) 48 13.5 24 33max input current 8.0 19 26rated input capacity(kva) 10.6 8.9 17 24efficiency (%) > 85%power factor > 0.99class of insulation hproduction class of case ip21sweight (kg) 8 11.5 18 24dimension (mm) 345x160x245 380x192x350 465x232x405 500x252x476.