The JD-6 is an integrated motor protection device designed for three‑phase AC motors operating at 50 Hz. It monitors phase loss, overload and other abnormal conditions and disconnects the motor supply to prevent damage.
The manual includes a product overview, technical specifications, wiring diagrams, example application circuits, dimensions, installation guidance, and step‑by‑step adjustment procedures with safety precautions. This manual is written in Chinese.
| Rated voltage | AC380Y / AC220Y 50 Hz |
|---|---|
| Rated current range | 20~100 A | 60~300 A |
| Trip level (adjustable) | 2~30 |
| Phase‑loss action time | S3 s |
| Reset method | Self‑reset |
| Short‑circuit capacity | AC220Y 34 Ω / AC380Y 24 Ω (resistive) |
| Display method | LED indicator |
| Alarm method | Audible and visual alarm |
| Mechanical life | 1 × 10⁶ cycles |
| Electrical life | 1 × 10⁶ cycles |
| Installation type | Device‑mounted |
Mount the protector below the AC contactor, with the three‑phase current conductors passing through the current‑transformer holes in the same direction.
The device is rated for AC380Y or AC220Y at 50 Hz, with a current range of 20–100 A (or 60–300 A depending on the version).