| Model | AC 222 | AC 252 | 
| Input Power (V) | 230/400 | 230/400 | 
| Rated Input Current (A) | 37/30 | 40/36 | 
| Rated Input Capacity(kVA)) | 12.2 | 14.4 | 
| Rated Open Circuit Voltage(V) | 50 | 50 | 
| Welding Current Adjustment Range(A) | 50-200 | 60-250 | 
| Rated Output(A)(20℃) / (40℃) | 10%/@200 | 10%/@250 | 
| Weight(kg) | 32 | 36 | 
| Electrode Diameter (mm) | 1.6-4.0 | 1.6-5.0 | 
| LxWxH (mm) | 565x300x440 | 565x300x440 |