25ka Surge Arrester 25GR 4P Type 1 Technical Specifications and Features

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25ka Surge Arrester 25GR 4P Type 1 Technical Specifications and Features

Introduction

The 25ka Surge Arrester 25GR 4P Type 1 is a high-performance surge protection device designed to safeguard electrical systems from transient overvoltages caused by lightning strikes or switching operations. This arrester is engineered to meet stringent safety standards, ensuring reliable protection for industrial, commercial, and residential applications.

Key Features

  • High Discharge Capacity: Capable of handling up to 25kA of surge current, making it suitable for high-risk environments.
  • Type 1 Classification: Complies with IEC 61643-11 standards for direct lightning strike protection.
  • 4-Pole Design: Provides comprehensive protection for all phases and neutral in a 3-phase system.
  • Durable Construction: Built with robust materials to ensure long-term performance in harsh conditions.
  • Visual Status Indicator: Allows for easy monitoring of the device’s operational status.

Technical Specifications

Parameter Value
Maximum Continuous Operating Voltage (Uc) 320V AC
Nominal Discharge Current (In) 25kA (8/20μs)
Voltage Protection Level (Up) ≤1.5kV
Response Time ≤25ns
Operating Temperature Range -40°C to +80°C
Protection Class IP20

Applications

The 25ka Surge Arrester 25GR 4P Type 1 is ideal for use in:

  • Main distribution boards in industrial facilities.
  • Commercial buildings with sensitive electronic equipment.
  • Residential properties located in lightning-prone areas.
  • Telecommunication and data center infrastructures.

Installation and Maintenance

For optimal performance, the surge arrester should be installed by a qualified electrician in accordance with local regulations and manufacturer guidelines. Regular inspections are recommended to ensure the device remains in good working condition. The visual status indicator simplifies maintenance by providing immediate feedback on the arrester’s health.

Conclusion

The 25ka Surge Arrester 25GR 4P Type 1 offers robust protection against transient overvoltages, combining high discharge capacity with reliable performance. Its compliance with international standards and user-friendly features make it a top choice for safeguarding electrical systems in diverse applications.

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