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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 surges. This arrester is engineered to meet the stringent requirements of industrial and commercial applications, ensuring reliable protection for sensitive equipment.
Key Features
The 25GR 4P Type 1 surge arrester boasts several advanced features that make it a preferred choice for surge protection:
- High Discharge Capacity: With a nominal discharge current of 25kA, it can handle large surge currents effectively.
- Type 1 Classification: Complies with IEC 61643-11 standards, providing protection against direct lightning strikes.
- 4-Pole Design: Offers comprehensive protection for all phases and the neutral conductor in a 3-phase system.
- Robust Construction: Built with durable materials to ensure long-term performance in harsh environments.
- Visual Status Indicator: Allows for easy monitoring of the arrester’s operational status.
Technical Specifications
Below are the detailed technical specifications of the 25ka Surge Arrester 25GR 4P Type 1:
| Parameter | Value |
|---|---|
| Nominal Discharge Current (In) | 25kA |
| Maximum Discharge Current (Imax) | 50kA |
| Voltage Protection Level (Up) | ≤ 2.5kV |
| Operating Voltage (Uc) | 255V AC |
| Response Time | ≤ 100ns |
| Operating Temperature Range | -40°C to +80°C |
| Protection Class | IP20 |
Applications
The 25ka Surge Arrester 25GR 4P Type 1 is suitable for a wide range of applications, including:
- Industrial power distribution systems
- Commercial buildings and data centers
- Telecommunication infrastructure
- Renewable energy systems (solar/wind)
- Transportation and railway systems
Installation and Maintenance
Proper installation and maintenance are crucial for optimal performance of the surge arrester. Follow these guidelines:
- Install the arrester as close as possible to the main distribution panel.
- Ensure proper grounding to minimize impedance and maximize protection.
- Regularly inspect the visual status indicator to confirm the device is operational.
- Replace the arrester if it has been subjected
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