50kA Low Voltage UL94-V0 3P+NPE Power Surge Arrester with 275V/255V Protection and ≤100ns Response Time
The BR-50GR 3P+NPE Surge Arrester provides comprehensive lightning and surge protection for low-voltage power systems. With a 50kA/100kA impulse current rating and UL94-V0 flame retardant enclosure, this Type 1 surge protection device ensures reliable operation in demanding industrial environments.
- Built-in over-current and over-heat protection with temperature control open circuit
- High energy surge protection capability up to 100kA
- Modular design for convenient DIN rail installation
- Remote alarm interface for system monitoring
- Ultra-fast response time <100ns
- High flame retardant UL94-V0 thermoplastic enclosure
- Visual status indicator window (red indicates abnormal operation)
- Built-in flash interrupter device for enhanced safety
| Parameter | BR-50GR 3+1 |
|---|---|
| SPD Classification (EN61643-11) | Type 1 |
| SPD Classification (IEC61643-11) | Class I |
| Max Continuous Operating Voltage (Uc) | 275V/255V |
| Lightning Impulse Current (10/350µs) | 50kA/100kA |
| Nominal Discharge Current (8/20µs) | 50kA/100kA |
| Voltage Protection Level (Up) | ≤1.8kV/≤1.5kV |
| Short-Circuit Current Rating | 25kA rms/100A rms |
| Max Backup Fuse | 315A gG |
| Response Time | ≤100ns |
| Mounting | 35mm DIN rail |
| Degree of Protection | IP20 |
| Operating Temperature Range | -40℃ to +80℃ |
| Cross-Section Area | 4mm² - 35mm² |
| Enclosure Material | Thermoplastic UL94-V0 |
This surge protective device is ideal for protecting electrical systems and on-loading electrical apparatus from lightning strikes and instantaneous over-voltage conditions. Applications include:
- UPS power supply systems
- Machine room power distribution
- Mobile communication base stations
- Microwave communications facilities
- Telecommunications rooms
- Industrial and mining operations
- Civil aviation and financial sector power systems
- Power distribution stations, rooms, and cabinets
Typically installed in the low-voltage main distribution cabinet of building incoming lines. During normal operation, especially in thunderstorm seasons, regularly inspect the surge protector's grounding system to maintain optimal protection performance.
All products undergo 100% testing and quality control inspection prior to shipment. Our surge protection devices comply with TUV and CE standards, backed by 21 years of manufacturing expertise in electrical protection solutions.
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