The HHD3G series intelligent digital motor protector is designed for 50 Hz AC circuits up to 380 VY. It monitors motor conditions such as phase loss, overload, current imbalance, and stall, and disconnects the motor power quickly to protect the equipment.
The manual explains the device’s technical specifications, wiring connections, installation adjustments, and fault indication. It also includes ordering information and dimensions for proper mounting. This manual is written in Chinese.
| Operating voltage | 380 V AC (380VY) or 220 V AC |
|---|---|
| Phase‑loss action time | <5 s |
Set the dip‑switch code to match the motor name‑plate current; the protector uses this value for static adjustment.
Reset by power‑off reset or by pressing the panel button; the reset time must be at least 300 s.
When an overload or stall occurs, the overload indicator lamp lights red.