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Installation & Application（安装应用） The NKP-DY-I/II/IIIX Series Power Surge Protection Cabinet is an integrated lightning protection device designed for comprehensive surge protection in power distribution systems. It combines surge protection modules (SPD), circuit breakers, lightning strike counters, grounding terminals, and alarm indicators into a single enclosure. When the power system is struck by lightning, it rapidly diverts high-current surges to ground while the alarm indicator flashes to provide visual warning.
All-in-One Protection
Integrates SPDs, circuit breakers, lightning counters, grounding bars, and status alarms for simplified installation.
Flexible Configuration
Single-phase 220V AC
Three-phase 380V AC
Voltage Ratings: Type I (10/350μs), Type II (8/20μs), Type III (1.2/50μs) per IEC 61643.
Power Compatibility:
Optional: With/without lightning strike counter (refer to selection guide).
Critical Grounding Requirement
The grounding terminal inside the cabinet must be securely connected to a low-impedance earth point to ensure safe dissipation of surge energy.
Product Dimension Drawing
Product Installation Diagram
Technical Parameters（技术参数） Applicable Power Supply: AC 380V/220V
Maximum Continuous Operating Voltage (Uc): ≤440V
Maximum Discharge Current (Imax): ≤220kA
Voltage Protection Level (Up): <1.8kV
Lightning Strike Counter: 0–99 (records surge events)
Fault Indication: Red LED lights up when SPD fails
Ordering and Model Selection（订货选型） *Please send the inquiry email containing specific product requirements (such as model, quantity, technical parameters, etc.) to the designated email address salina@kejia.com.
（请将包含具体产品需求（如型号、数量、技术参数等）的询价邮件发送至指定邮箱 salina@kejia.com）
