The HHA3-1 series electronic load controller is designed for AC 50 Hz, 220 V power circuits to automatically cut off load power when the load exceeds a preset range, ensuring safe electricity use in factories, dormitories, and construction sites. It features a compact structure, attractive appearance, and DIN‑rail mounting.
The manual includes technical data, wiring diagrams, usage instructions, safety precautions, installation steps, example application circuits, and ordering information to help users correctly install, operate, and maintain the controller. This manual is written in Chinese.
| Working voltage | AC220V 50 Hz |
|---|---|
| Protection delay time | 4 s‑6 s (inverse‑time characteristic) |
| Reset mode | Automatic reset 20 s‑60 s |
| Current error | ±10 % |
| Power consumption | ≤1.5 W |
| Electrical life | 1 × 10⁶ cycles |
| Dimensions | 80 mm × 50 mm × 66.5 mm |
The controller automatically resets after a delay of 20 to 60 seconds.