Hager SPE440 Surge Arrester 4P Type 2 TNS/TT Uc 275V In 20kA Imax 40kA

The Hager SPE440 is a high-performance Type 2 surge protective device (SPD) designed for 4-pole (4P) applications in TNS and TT earthing systems. It provides reliable protection against transient overvoltages, safeguarding electrical installations and connected equipment. With a maximum continuous operating voltage (Uc) of 275 V AC, nominal discharge current (In) of 20 kA per pole, and maximum discharge current (Imax) of 40 kA per pole, this SPD ensures robust performance in demanding environments.

Advantages

• Compact 4-module design for easy DIN rail mounting
• Visual status indicator (green/red) for quick health checks
• High short-circuit withstand capability (50 kA) for enhanced safety
• Fast response time (<25 ns) to protect sensitive electronics
• Compliant with EN 61643-11 and IEC 61643-11 standards

Suitable for

• Residential and commercial electrical panels
• Industrial control systems
• Telecommunications and data centers
• Any installation requiring Type 2 surge protection in TNS/TT networks

Key specifications

• SPD Type: Type 2
• Number of Poles: 4P
• Earthing System: TNS, TT
• Uc: 275 V AC
• In (8/20 µs): 20 kA per pole
• Imax (8/20 µs): 40 kA per pole
• Up: <1.5 kV
• Isccr: 50 kA
• Response Time: <25 ns
• Mounting: DIN Rail
• Width: 4 modules (72 mm)
• Operating Temperature: -25 to +70 °C
• Protection: IP20
• Connection: Rigid 1.5-35 mm², Flexible 1.5-25 mm²
• Technology: MOV

Recommendations

For optimal protection, install this SPD at the main distribution board. Ensure proper coordination with downstream Type 3 SPDs for sensitive equipment. Always follow local electrical codes and manufacturer guidelines.