| Model | AC220 |
| Open Circuit Amp | 60 - 220A |
| Input Voltage | 240/415V 1P |
| Rated Frequency | 50Hz / 60Hz |
| Input Capacity | 10KVA |
| Open Circuit Voltage | 70V |
| Duty Cycle | 60% |
| Electrode Size (mm) | 2.6 - 3.2 |
| Weight (kg) | 19.2kg |
| Dimension (L x W x H) | 245 x 380 x 330mm |
| Model | AC320 |
| Open Circuit Amp | 60 - 320A |
| Input Voltage | 415V 1P |
| Rated Frequency | 50Hz / 60Hz |
| Input Capacity | 21KVA |
| Open Circuit Voltage | 70V |
| Duty Cycle | 60% |
| Electrode Size (mm) | 2.5 - 6.0 |
| Weight (kg) | 85kg |
| Dimension (L x W x H) | 590 x 440 x 690mm |
| Model | AC420 |
| Open Circuit Amp | 80 - 420A |
| Input Voltage | 415V 1P |
| Rated Frequency | 50Hz / 60Hz |
| Input Capacity | 32.5KVA |
| Open Circuit Voltage | 75V |
| Duty Cycle | 60% |
| Electrode Size (mm) | 2.5 - 8.0 |
| Weight (kg) | 90kg |
| Dimension (L x W x H) | 645 x 490 x 750mm |
| Model | AC520 |
| Open Circuit Amp | 90 - 520A |
| Input Voltage | 415V 1P |
| Rated Frequency | 50Hz / 60Hz |
| Input Capacity | 42KVA |
| Open Circuit Voltage | 75V |
| Duty Cycle | 60% |
| Electrode Size (mm) | 3.0 - 9.0 |
| Weight (kg) | 135kg |
| Dimension (L x W x H) | 645 x 490 x 750mm |