25kA Surge Arrester 25GR 4P Type 1 Specifications and Features

# 25kA Surge Arrester 25GR 4P Type 1 Specifications and Features

## Introduction to Surge Protection

Surge arresters play a critical role in protecting electrical systems from voltage spikes caused by lightning strikes or power surges. The 25kA Surge Arrester 25GR 4P Type 1 is designed to provide robust protection for commercial and industrial applications.

## Key Specifications

Technical Parameters

The 25GR 4P Type 1 surge arrester offers the following specifications:

• Nominal discharge current (In): 25kA
• Maximum discharge current (Imax): 50kA
• Voltage protection level (Up): ≤ 2.5kV
• Response time: <25ns
• Operating temperature range: -40°C to +85°C
• Number of poles: 4 (3 phases + neutral)
• Mounting: DIN rail compatible

## Product Features

Advanced Protection Technology

This Type 1 surge arrester incorporates:

• Spark gap technology for superior lightning protection
• Thermal disconnector for safe operation
• Visual status indication for easy monitoring
• High-quality metal oxide varistors (MOVs)

Installation and Compatibility

The 25GR 4P model features:

• Compact design for space-efficient installation
• Standard 35mm DIN rail mounting
• Compatibility with most electrical distribution boards
• Easy-to-use screw terminals

## Applications

Ideal Usage Scenarios

This surge protection device is particularly suitable for:

• Main distribution boards in commercial buildings
• Industrial power distribution systems
• Telecommunication facilities
• Data centers and server rooms
• Medical facilities requiring high reliability

## Compliance and Standards

The 25kA Surge Arrester 25GR 4P Type 1 complies with:

• IEC 61643-11 standard for Type 1 SPDs
• UL 1449 4th Edition
• CE marking for European markets
• RoHS compliance for environmental safety

## Maintenance and Monitoring

Operational Considerations

For optimal performance:

• Regular visual inspections recommended
• Replace after significant surge events
• Monitor status indicators periodically
• Follow manufacturer’s installation guidelines

The 25kA Surge Arrester 25GR 4P Type 1 provides reliable, high-performance protection against electrical surges, making it an excellent choice for critical electrical installations requiring robust surge protection.