Three Phase Type 2 Surge Arrester 40kA-70kA 3P with Fire Retardant UL94-V0 Enclosure and IP20 Protection
Three Phase Type 2 Surge Arrester with 40kA-70kA capacity, fire retardant construction, and stable performance for reliable electrical protection.
- Class II, Type 2 classification with 70kA maximum surge current
- Tested to IEC61643-11 and EN61643-11 standards using 8/20 µs impulse current
- Suitable for TN-C power systems with simple DIN rail mounting
- IP20 protection rating with optional remote signaling capability
- Fire retardant thermal plastic UL94-V0 enclosure material
| Model | BR150 70 3P | BR275 70 3P | BR320 70 3P | BR385 70 3P |
|---|---|---|---|---|
| Max. continuous operating voltage Uc | 150V | 275V | 320V | 385V |
| Nominal discharge current (8/20µs) In | 40kA | 40kA | 40kA | 40kA |
| Max. discharge current (8/20µs) Imax | 70kA | 70kA | 70kA | 70kA |
| Voltage protection level Up | ≤1.0kV | ≤1.7kV | ≤2.0kV | ≤2.3kV |
| Response time tA | ≤25ns | ≤25ns | ≤25ns | ≤25ns |
| Operating temperature range | -40℃ to 80℃ | -40℃ to 80℃ | -40℃ to 80℃ | -40℃ to 80℃ |
| Cross-section area | 4-35mm² | 4-35mm² | 4-35mm² | 4-35mm² |
Provides protection against surge currents from direct or indirect lightning strikes and instantaneous overvoltage surges. Suitable for residential, commercial, and industrial applications including homes, third industry sectors, and industrial facilities.
Plug-in type function unit enables quick and simple replacement
Ultra-fast response time of less than 25 nanoseconds
Strictly screened core components ensure stable performance and dependable operation
Advanced manufacturing processes and professional appearance design
The surge arrester effectively protects electrical equipment by diverting abnormal voltages to ground. Under normal operating conditions, it remains inactive. When high voltage surges threaten equipment insulation, the arrester immediately activates, channeling the high current to earth and limiting voltage amplitude. Once the overvoltage subsides, the device quickly returns to normal operation, ensuring continuous power supply.
Wenzhou Britec Electric Co., Ltd specializes in the production and development of low voltage surge arresters with 17 years of industry experience.
All major products have passed CE, CB, TUV and multiple other international qualification tests.
We specialize in AC surge protection, PV (solar) surge protectors, data surge protective devices, and LED lightning arresters.
Quality is maintained through comprehensive factory testing procedures and strict component screening.
Standard shipping time is approximately 20 days after order confirmation.
We are a professional lightning protection manufacturer with our own production facility.
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