| Feature | Specification / Details |
| Model Series | ATK3150 / ATK3500 |
| Sensing Input | 190V – 480V AC (Three-Phase or Single-Phase selectable) |
| Input Power | 170V – 270V AC |
| Output Current | 15A – 20A DC Continuous (Heavy Duty) |
| Regulation Accuracy | < ± 0.5% |
| Excitation Resistance | 5 $\Omega$ to 50 $\Omega$ |
| Frequency Selection | 50Hz / 60Hz (via terminal jumper) |
| Protection | Over-excitation and Under-frequency Roll-Off (UFRO) |