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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 power surges. This device is engineered to meet stringent safety standards, ensuring reliable protection for residential, commercial, and industrial 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 Type 1 standards, providing protection against direct lightning strikes.
  • 4-Pole Design: Offers comprehensive protection for all phases and neutral in a 3-phase system.
  • Durable Construction: Built with robust materials to ensure longevity and resistance to environmental factors.
  • Visual Status Indicator: Features an easy-to-read indicator for quick assessment of operational status.

Technical Specifications

Parameter Value
Maximum Continuous Operating Voltage (Uc) 320V AC
Nominal Discharge Current (In) 10kA (8/20μs)
Maximum Discharge Current (Imax) 25kA (8/20μs)
Voltage Protection Level (Up) ≤1.5kV
Response Time ≤100ns
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 buildings
  • Industrial power supply systems
  • Telecommunication infrastructure
  • Renewable energy installations (e.g., solar power systems)

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 inspection is recommended to ensure the device remains in good working condition. The visual status indicator simplifies maintenance by providing immediate feedback on the device’s operational state.

Conclusion

The 25ka Surge Arrester 25GR 4P Type 1 is a reliable and robust solution for protecting electrical systems against transient overvoltages. Its high discharge capacity, durable design, and compliance with Type 1 standards make it an excellent choice for applications requiring superior surge protection.