# Surge Protective Device BR-40 2P Type 2 40kA for TNS Systems
## Introduction to Surge Protection
Electrical surges can cause significant damage to sensitive electronic equipment, leading to costly repairs and downtime. The BR-40 2P Type 2 40kA Surge Protective Device (SPD) offers reliable protection for TNS electrical systems against transient overvoltages.
## Key Features of BR-40 2P Type 2 SPD
High Performance Protection
The BR-40 2P provides 40kA protection per phase (20kA per mode), making it suitable for most commercial and industrial applications.
Compact Design
With its space-saving 2-pole configuration, this SPD is ideal for installation in distribution boards where space is limited.
Visual Status Indication
The device features clear visual indicators to show operational status and end-of-life condition, ensuring easy maintenance.
## Technical Specifications
- Nominal voltage: 230V AC
- Maximum continuous operating voltage (Uc): 320V AC
- Voltage protection level (Up): ≤1.5kV
- Response time: <25ns
- Operating temperature range: -40°C to +80°C
## Installation and Compatibility
The BR-40 2P Type 2 SPD is specifically designed for TNS (Terra-Neutral-Separate) earthing systems. It should be installed in parallel with the electrical installation, preferably at the origin of the installation or at sub-distribution boards.
For optimal protection, the SPD should be installed with appropriately sized short-circuit protection devices as recommended by the manufacturer.
## Benefits for Your Electrical System
Equipment Protection
By diverting surge currents to earth, the BR-40 2P safeguards connected equipment from damage caused by lightning strikes and switching surges.
Compliance with Standards
This device meets all relevant international standards including IEC 61643-11, ensuring reliable performance and safety.
Cost-Effective Solution
Protecting your electrical installation with the BR-40 2P is far more economical than replacing damaged equipment after a surge event.
## Maintenance Considerations
Regular inspection of the SPD is recommended to ensure continued protection. The visual indicators provide clear information about the device status, making maintenance straightforward.
Like all surge protective devices, the BR-40 2P has a finite lifespan and should be replaced when it reaches its end-of-life condition as indicated by the status window.
