Type 2 & Type 3 SPD 275V Surge Arrester 3-Pole + NPE 40kA DIN Rail Mount Protection Device
The BR-40DP Series Type 2 and Type 3 SPD 275V Surge Arrester provides comprehensive protection against transient overvoltages with 40kA maximum surge current capacity and rapid ≤25ns response time.
- 40kA maximum surge current capacity
- 275V rated operating voltage (UC)
- Ultra-fast response time ≤25ns
- Optional remote signaling capability
- 3-pole + NPE configuration
- Compliant with IEC 61643-11 and EN 61643-11 standards
- Visual status indicators for operational monitoring
- Type 3 protection for equipment within 5 meters
| Parameter | Specification |
|---|---|
| SPD Classification (EN61643-11) | Type 2 + Type 3 |
| SPD Classification (IEC61643-11) | Class II + Class III |
| Max. Continuous Operating Voltage (Uc) | 275V |
| Nominal Discharge Current (8/20μs) | 20kA |
| Max. Discharge Current (8/20μs) | 40kA |
| Voltage Protection Level (Up) | ≤1.3kV / 1.5kV |
| Voltage Protection Level 5kA (Up) | ≤1.0kV / 1.5kV |
| Combined Impulse (Uoc) | 10kV |
| Max. Backup Fuse | 125A gG |
| Response Time (tA) | ≤25ns |
| Operating Temperature Range | -40℃ to 80℃ |
| Operating State / Fault Indication | Green / Red |
| Cross-section Area (Min.) | 2.5mm² |
| Cross-section Area (Max.) | 16mm² |
| For Mounting On | 35mm Din Rail |
| Enclosure Material | Thermal Plastic UL94-V0 |
| Degree of Protection | IP20 |
| Order Code | B8243 |
| Order Code (With Remote Signaling) | B8244 |
- Commercial and industrial installations protection
- Secondary distribution boards in commercial and industrial facilities
- Small commercial or residential electrical systems
- Terminal devices and sensitive electronic equipment
- Telecom centers and automatic control systems
- Intelligent buildings and industrial enterprises
- Medical institutes and healthcare facilities
- Meets all low voltage installation requirements
- DIN rail mounting for simplified installation and maintenance
- High current capacity with quick response
- Low residual voltage and free of leakage current
- 17 years of global leadership in electrical product manufacturing
- Comprehensive pre-shipment packaging
- Standard and custom packaging options available
- Expedited delivery services
- Individual product testing prior to shipment
Lightning-induced overvoltages account for 25% to 40% of all equipment damage. When combined with transient overvoltages from other sources, nearly 60% of electrical damage can be prevented by installing proper surge protective devices.
When high voltage threatens equipment insulation, the surge arrester activates instantly, diverting the high-voltage impact current to ground. This limits voltage amplitude and protects equipment insulation. Once the overvoltage subsides, the arrester rapidly returns to its normal state, ensuring continuous protection of power equipment.
Wenzhou Britec Electric Co., Ltd. is a modern manufacturing enterprise specializing in research, development, and production of low voltage surge arresters. The company maintains an exceptional talent team and produces AC SPD, DC surge protection, data surge protectors, LED lightning protective devices, and other lightning arrester series.
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