The series of intelligent motor protectors are suitable for ac 50Hz, rated working voltage 380V and below power supply circuit with ac contactor and other switching devices to form motor control circuit. When the main circuit of the motor appears phase cut, overload and other abnormal working conditions, the contactor contacts are timely disconnected, the three-phase power supply of the motor is cut off, and the motor is protected rapidly and reliably.
The HHD3E‑Q series intelligent motor protector is designed for AC 50 Hz supply voltages up to 380 V. It protects motors from phase loss, overload and other abnormal conditions using patented full‑network phase‑loss protection and adjustable trip levels.
The manual provides an overview of the device, technical data tables, wiring diagrams, installation and adjustment procedures, safety precautions, and ordering information. It also explains how to set the rated current and trip level based on the motor name‑plate. This manual is written in Chinese.
| Rated supply voltage | AC380V / AC220V 50 Hz |
|---|---|
| Adjustable current range | 1 A–5 A, 2 A–10 A, 8 A–40 A, 20 A–100 A, 40 A–160 A |
| Full‑network phase‑loss action time | ≤ 6 s |
| Relay output type / capacity | AC220V 3 A; AC380V 3 A |
| Installation method | Device‑mount and DIN‑rail (35 mm) compatible |
Rotate the “整定电流” knob until the scale aligns with the motor’s name‑plate rated current value.
The full‑network phase‑loss protection acts within 6 seconds or less.
Yes, it supports both device‑mount and 35 mm DIN‑rail installation.