| Parameter / Engineering Feature | Technical Specification Details |
| Common Model Designations | NST-51-DFK / DST-51 / DST-51-DFKV |
| Compatible Generator Frameworks | Taiyo, Yamaha EDL series (EDL13000TE to EDL26000TE) |
| Generator Output Phase System | Single-Phase (220V) or Three-Phase (380V/440V) setups |
| Detection Power Voltage Input | 95 V to 120 VAC (Single-phase line sampling) |
| Operational Control Voltage Input | 110 VAC / 220 VAC (Dual-voltage options terminal selectable) |
| Maximum Excitation Current Output | 4 A to 5 A Continuous |
| Maximum Excitation Voltage Output | Up to 100 VDC peak saturation potential |
| Steady-State Voltage Regulation Rate | $\le \pm 1.0\%$ from no-load to full-rated load |
| Low-Frequency Protection (UFRO) | 50 Hz / 60 Hz adjustable knee-point curve corner |
| Maximum Physical Vibration Limit | Up to 4 G displacement tolerance |
| Operational Ambient Temperature | $-20^\circ\text{C}$ to $+60^\circ\text{C}$ (Storage limits up to $+80^\circ\text{C}$) |
| Environmental Ingress Configuration | Partially sealed moisture/dust-inhibiting resin compound |