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

## Introduction

The BR 30FU 4P 30KA SPD (Surge Protective Device) is a high-performance lightning protection solution designed to safeguard electrical systems from transient overvoltages caused by lightning strikes and power surges. This device offers reliable protection for both residential and commercial applications, ensuring the safety of sensitive electronic equipment.

## Key Features

– Maximum discharge current: 30kA (8/20μs)
– 4-pole design for comprehensive protection
– Compact and modular construction
– Visual status indication
– Quick response time (<25ns)
– Thermal disconnector for fail-safe operation

## Technical Specifications

### Electrical Characteristics

Parameter | Value

Nominal voltage (Un) | 230/400V AC
Maximum continuous operating voltage (Uc) | 320V AC
Voltage protection level (Up) | ≤1.5kV
Nominal discharge current (In) | 20kA (8/20μs)
Maximum discharge current (Imax) | 30kA (8/20μs)
Response time | <25ns

### Mechanical Characteristics

Parameter | Value

Mounting | DIN rail (35mm)
Dimensions (W×H×D) | 72×90×65mm
Weight | Approx. 400g
Connection | Screw terminals
Protection class | IP20

## Installation Guidelines

The BR 30FU 4P 30KA SPD should be installed in the main distribution board as close as possible to the incoming power supply. Follow these installation steps:

1. Disconnect power supply before installation
2. Mount the device on a 35mm DIN rail
3. Connect the phase and neutral conductors according to the wiring diagram
4. Ensure proper grounding connection
5. Verify all connections are tight and secure
6. Restore power and check status indicator

## Maintenance and Monitoring

Regular inspection of the BR 30FU 4P 30KA SPD is recommended to ensure optimal performance:

• Check status indicator monthly (green = OK, red = replace)
• Inspect for physical damage or discoloration
• Verify tightness of connections annually
• Replace the device if the status indicator shows failure
• Consider replacement after significant surge events

## Applications

Typical Use Cases

The BR 30FU 4P 30KA SPD is suitable for various applications including:

• Residential electrical panels
• Commercial buildings
• Industrial facilities
• Telecommunication systems
• Data centers
• Medical facilities

## Compliance and Standards

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

• IEC 61643-11
• EN 61643-11
• UL 1449 (4th Edition)
• CE marked
• RoHS compliant