本身
html
BR-20 1+1 Type 2 20kA Surge Protective Device for TT and TNS Systems
In today’s increasingly electrified world, protecting electrical systems from power surges is more critical than ever. The BR-20 1+1 Type 2 20kA Surge Protective Device (SPD) offers robust protection for both TT and TNS earthing systems, ensuring the safety of your equipment and infrastructure.
Key Features of the BR-20 1+1 SPD
The BR-20 1+1 SPD stands out with its impressive technical specifications and design features:
- 20kA discharge capacity per mode (L-N, N-PE)
- 1+1 configuration for comprehensive protection
- Type 2 classification according to IEC 61643-11
- Suitable for both TT and TNS earthing systems
- Compact design for easy installation
- Visual status indication for quick monitoring
Why Choose the BR-20 for TT and TNS Systems?
TT and TNS earthing systems present different challenges for surge protection. The BR-20’s 1+1 configuration provides:
- Simultaneous protection between live conductors (L-N)
- Protection between neutral and earth (N-PE)
- Optimal coordination with upstream and downstream protection devices
- Reliable operation in various network conditions
Installation and Applications
The BR-20 is designed for straightforward installation in:
- Commercial buildings
- Industrial facilities
- Residential complexes
- Telecommunication systems
- Data centers
Its compact DIN rail mounting makes it ideal for panel integration in main distribution boards.
Technical Specifications
| Parameter | Value |
|---|---|
| Nominal Voltage (Un) | 230/400V AC |
| Maximum Continuous Operating Voltage (Uc) | 275V AC (L-N), 255V AC (N-PE) |
| Nominal Discharge Current (In) | 10kA (8/20μs) |
| Maximum Discharge Current (Imax) | 20kA (8/20μs) |
| Voltage Protection Level (Up) | ≤1.5kV (L-N), ≤1.2kV (N-PE) |
Conclusion
The BR-20 1+1 Type 2 20kA Surge Protective Device provides comprehensive protection for both TT and TNS earthing systems. With its high discharge capacity, reliable performance, and versatile installation options, it’s an excellent choice for safeguarding electrical installations against transient overvoltages.
For optimal protection, always consult with a qualified electric
