| MODEL | MMA250D |
| Input voltage | AC220V+15% 1PH |
| Input voltage frequency(HZ) | 50/60 |
| Rated input power capacity(KVA) | 7 |
| Rated input current(A) | 31.8 |
| Rated output voltage(V) | 28 |
| Output current range(A) | 30-200A |
| No-load voltage(V) | 66 |
| Arc force | 0-100 |
| Diameter of rod | 1.6-4.0 |
| Duty cycle(%) | 60 |
| No-load consumption (W) | 60 |
| Insulation class | F |
| Protection class | IP21S |
| Power factor | 0.93 |
| Efficiency（%） | 85 |
| Weight(Kg) | 4 |
| Dimension(mm) | 283*133*198 |
