| Specification | Unit | CTW-TIG630i |
| Input voltage | Volt | AC415±15% |
| Phase | No | 3 |
| Frequency | Hz | 50/60 |
| Max input KVA@100% duty cycle | KVA | 20.5 |
| Open circuit voltage | Volts DC | 70 |
| Welding current range (TIG Mode) | Amps DC | 10-630 |
| Welding current range (MMA Mode) | Amps DC | 20-630 |
| Welding current @60% duty cycle | Amps | 630 |
| Welding current @100% duty cycle | Amps | 510 |
| Efficiency | % | 85 |
| Degree of protection | Class | IP23S |
| Insulation | Class | H |
| Gas pre-flow time | sec | 0-5 |
| Gas post-flow time | sec | 1-20 |
| Current up slope/down slope time | sec | 0-10 |
| Cooling | Type | Forced Air |
| Dimensions (LxWxH) | mm | 670x320x640 |
| Weight (approx) | Kg | 52 |
