| MODEL | NBC-250Y | NBC-315Y | NBC-250F | NBC-315F | NBC-350F | NBC-500F |
| Input Power Voltage(V)，HZ) | 3-380V/50 | 3-380V/50 | 3-380V/50 | 3-380V/50 | 3-380V/50 | 3-380V/50 |
| Rated Welding Current(A) | 250 | 315 | 250 | 315 | 350 | 500 |
| Rated Load Voltage(V) | 26.5 | 30 | 26.5 | 30 | 31.5 | 39 |
| Current Adjust Range(V) | 50-250 | 50-315 | 50-250 | 50-315 | 60-350 | 80-500 |
| Open Circuit Voltage(V) | 16-35 | 16-35 | 16-35 | 16-36 | 18-40 | 19-50 |
| Rated Duty Cycle(%) | 35% | 60% | 35% | 60% | 60% | 60% |
| Wire Feeding Speed(M/min) | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 | 3-15 |
| Spot/Intermittent Welding Time(s) | 0.2-5 | 0.2-5 | 0.2-5 | 0.2-5 | 0.2-5 | 0.2-5 |
| Intermittent Welding Stop Time(s) | 0.2-5 | 0.2-5 | 0.2-5 | 0.2-5 | 0.2-5 | 0.2-5 |
| Weight(kg) | 103 | 132 | 103 | 132 | 138 | 170 |
| Dimension(mm) | 663x395x766 | 663x395x766 | 660x378x756 | 680x408x756 | 680x408x756 | 776x436x814 |
