Surge Protection Device BR 30FU 4P 30KA SPD Technical Specifications

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on March 21, 2025

# Surge Protection Device BR 30FU 4P 30KA SPD Technical Specifications

## Introduction to BR 30FU 4P 30KA SPD

The BR 30FU 4P 30KA Surge Protection Device (SPD) is a high-performance solution designed to protect electrical systems from transient overvoltages caused by lightning strikes or switching operations. This 4-pole device offers robust protection with a nominal discharge current of 30kA, making it suitable for a wide range of industrial and commercial applications.

## Key Features

High Surge Current Capacity

The BR 30FU 4P model boasts an impressive 30kA (8/20μs) nominal discharge current, providing excellent protection against powerful electrical surges.

Four-Pole Design

With its 4-pole configuration, this SPD offers comprehensive protection for three-phase systems with neutral, ensuring all conductors are safeguarded against transient overvoltages.

Fast Response Time

The device features an ultra-fast response time, typically less than 25 nanoseconds, to quickly divert surge currents away from sensitive equipment.

## Technical Specifications

Parameter Value
Nominal Discharge Current (In) 30kA (8/20μs)
Maximum Discharge Current (Imax) 60kA (8/20μs)
Voltage Protection Level (Up) ≤ 2.5kV
Rated Voltage (Un) 230/400V AC
Response Time <25ns
Operating Temperature Range -40°C to +80°C

## Installation and Application

Installation Guidelines

The BR 30FU 4P 30KA SPD should be installed in parallel with the electrical system, preferably at the main distribution board. Proper earthing is essential for optimal performance.

Typical Applications

  • Industrial power distribution systems

  • Commercial buildings

  • Telecommunication facilities

  • Data centers

  • Medical facilities

## Maintenance and Monitoring

Regular inspection of the BR 30FU 4P SPD is recommended to ensure continued protection. The device features a visual status indicator that shows the operational state and need for replacement.

For optimal performance, the SPD should be replaced after significant surge events or according to the manufacturer’s recommended maintenance schedule.

## Compliance and Standards

The BR 30FU 4P 30KA SPD complies with international standards including:

  • IEC 61643-11

  • EN 61643-11

  • UL 1449

This ensures the device meets rigorous safety and performance requirements for surge protection applications.

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