Terminal Power Distribution
ZPSD Series Surge Protection Device
Limit lightning and switching overvoltages to protect sensitive equipment at the distribution system's end.

ZPSD Series Surge Protection Device
Model:ZPSD-B / C / D Class
Limit lightning and switching overvoltages to protect sensitive equipment at the distribution system's end.
Product Features
- Modular plug-in structure with failure visibility indicators
- Optional remote signal contact
- Multi-level energy coordination plan
Key Technical Specifications
Specifications are subject to product documentation and factory test reports. Contact an engineer for confirmation in special operating conditions.
| Maximum Continuous Operating Voltage Uc | 275V / 385V / 440V |
|---|---|
| Rated discharge current In | 10kA / 20kA |
| Voltage Protection Level Up | ≤ 1.5kV / ≤ 1.8kV |
| Execution Standard | GB/T 18802.1, IEC 61643-11 |
Product Description
The ZPSD series surge protective devices provide overvoltage protection for low-voltage distribution systems. Arranged according to Class B, C, and D energy coordination, they limit lightning-induced and switching overvoltages within equipment tolerance. When a module fails, the indicator window changes from green to red for easy inspection.
Use Cases
- Incoming and outgoing protection for switchgear room
- Grid-connection point protection for PV systems
- Data Center and Building End-Point Protection


