Eaton SPCT2-280-3+NPE Type 2 Surge Protection Device - 3P+NPE, 20kA, DIN Rail Mount

Voltage spikes and transient surges can silently degrade or instantly destroy sensitive electrical equipment in distribution boards. The Eaton SPCT2-280-3+NPE Type 2 surge protection device (SPD) is engineered to divert dangerous overvoltages away from your installation, safeguarding main and sub-distribution panels with a nominal discharge current of 20 kA and maximum discharge current of 40 kA. Its pluggable modular design ensures quick replacement without rewiring, while the integrated thermal disconnector and visual status indicator provide immediate fault detection.

Who is it for

This SPD is ideal for electrical contractors, panel builders, and facility managers who need reliable surge protection for three-phase + neutral systems in commercial or industrial environments. It is particularly suited for installations where continuity of service and ease of maintenance are critical, such as office buildings, retail spaces, and light industrial facilities.

Main features

• Type 2 (Class II) surge protection according to IEC/EN 61643-11, suitable for main and sub-distribution boards.
• 3P+NPE configuration protects all three phases plus neutral and earth, ensuring comprehensive coverage for 230/400 V AC systems.
• High discharge capacity: nominal 20 kA (8/20 µs) and maximum 40 kA (8/20 µs), with short-circuit withstand of 50 kA.
• Low voltage protection level (< 1.3 kV) and fast response time (< 25 ns) to clamp transients effectively.
• Pluggable modular housing with visual status indication (green/red) for quick health checks and easy replacement of protection modules.
• Integrated thermal disconnector for safe disconnection of faulty varistors, preventing fire hazards.
• DIN rail mounting (35 mm) for simple integration into standard distribution enclosures.

Specifications

• Product type: Surge Protection Device (SPD)
• SPD type: Type 2 (Class II)
• Number of poles: 3P+NPE
• Nominal voltage (Un): 230/400 V AC
• Max continuous operating voltage (Uc): 280 V AC
• Nominal discharge current (In): 20 kA (8/20 µs)
• Max discharge current (Imax): 40 kA (8/20 µs)
• Voltage protection level (Up): < 1.3 kV
• Short-circuit withstand capability (Isccr): 50 kA
• Response time: < 25 ns
• Follow current extinguishing capability: Yes
• Thermal disconnector: Integrated
• Mounting type: DIN rail (35 mm)
• Status indication: Visual (green/red)
• Housing design: Modular, pluggable
• Degree of protection: IP20
• Standards: IEC/EN 61643-11
• Application: Main and sub-distribution boards

Tips

For optimal protection, install this SPD as close as possible to the incoming supply of the distribution board, keeping lead lengths short to minimize let-through voltage. Periodically check the status indicator—if it turns red, replace the module immediately to maintain protection. When integrating with upstream Type 1 SPDs, ensure proper coordination per manufacturer guidelines.