BR-50GR 4P Type 1 Surge Protective Device 50kA 275V AC Lightning Arrester for Three Phase Systems
50kA three phase Type 1 Surge Protection Device TUV certificated BR-50GR 3+1. Designed to discharge high current surges without destruction of the installation, this surge protective device withstands impulse current with 10/350 µs wave form simulating direct impact from natural lightning current.
| Specification | BR-50GR 4P |
|---|---|
| Item name | Surge Arrester |
| SPD classification according to EN61643-11 | Type 1 |
| SPD classification according to IEC61643-11 | Class I |
| Max continuous Operating a.c. voltage Uc | 275V |
| Lightning impulse current (10/350µs) limp | 50kA |
| Nominal discharge current (8/20µs) In | 50kA |
| Voltage protection level Up | 1.8kV |
| Follow current extinguishing capability a.c. lifi | 3kA rms |
| Max. backup fuse | 500A gG |
| Response time tA | ≤100ns |
| For mounting on | 35mm Din rail |
| Degree of protection | IP20 |
| Operating temperature range Tu | -40℃--80℃ |
| Cross-section area (Min.) | 4mm² |
| Cross-section area (Max.) | 35mm² |
| Enclosure material | Thermoplastic UL94-V0 |
- Suitable for TT and TN-S systems
- Used in industrial systems and buildings with external lightning protection of Classes I to IV
- For protection of low voltage distribution systems against direct lightning strike into overhead power supply line or external lightning protection system
- Can be used in standard distributor housing
- Competitively priced against other brands
- High current capacity
- High speed action response time
- With overheat protection
- High reliability
- Large flow capacity, low residual pressure
- Rigorous structure, convenient installation, simple maintenance
- 25 years global leading professional manufacture of electrical products surge arrester
- All products will be well packed before shipping
- Standard packaging with custom packaging options available
- Faster delivery
- Individually tested prior to shipment
Usually installed in the low-voltage main distribution cabinet of the building incoming line. During normal use, especially during thunderstorm season, the grounding system should be checked regularly to maintain good grounding condition, otherwise protection effectiveness may be affected.
Wenzhou Britec Electric Co., Ltd. is located in Yueqing city. Britec is dedicated to development, manufacture, marketing and service of low voltage surge arrester products. The rapidly-developed regional economy and friendly investment environment ensure Britec's sustainable developments and continuous innovations.
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