Technology Characteristic:
| Specification | BR-50GR 150 3P | BR-50GR 275 3P | BR-50GR 320 3P | |
| SPD classification according to EN61643-11 | Type 1 + Type 2 | Type 1 + Type 2 | Type 1 + Type 2 | |
| SPD classification according to IEC61643-11 | Class I + Class II | Class I + Class II | Class I + Class II | |
| Nominal operating voltage | Un | 120V/240V(50/60Hz) | 230V/400V(50/60Hz) | 250V/440V(50/60Hz) |
| Max. continuous operating a.c. voltage | Uc | 150V(50/60Hz) | 275V(50/60Hz) | 320V(50/60Hz) |
| Lightning impulse current (10/350μs) | Iimp | 50kA | 50kA | 50kA |
| Nominal discharge current (8/20μs) | In | 50kA | 50kA | 50kA |
| Max. discharge current (8/20μs) | Imax | 200kA | 200kA | 200kA |
| Quantity of electric charge | Q | 25As | 25As | 25As |
| Specific energy | W/R | 625kJ/Ω | 625kJ/Ω | 625kJ/Ω |
| Voltage protection level | Up | ≤2.3kV | ≤2.3kV | ≤2.3kV |
| Short-circuit current rating a.c. | Isccr | 25kA rms | 25kA rms | 25kA rms |
| Max. backup fuse | 350A gG | 350A gG | 350A gG | |
| Temporary overvoltage TOV-withstand | UT | 250V/120min. | 440V/120min. | 550V/120min. |
| Response time | tA | ≤100ns | ≤100ns | ≤100ns |
| Operating temperature range | Tu | -40℃-80℃ | -40℃-80℃ | -40℃-80℃ |
| Cross-section area (Min.) | 4mm² | 4mm² | 4mm² | |
| Cross-section area (Max.) | 35mm² | 35mm² | 35mm² | |
| For mounting on | 35mm Din rail | |||
| Enclosure material | Thermoplastic UL94-V0 | |||
| Degree of protection | IP20 | IP20 | IP20 | |
| Order Code | B17160 | B18137 | B17186 | |
| Order Code (With remote signaling) | B17161 | B18138 | B17187 | |
Features:
Endurable, sustains multiple strikes.
Protection class: Type 1+2, Class I +Class II.
BR-50GR 3P is suitable for TN-C system.
3 poles 50kA Type 1 lightning arrester.
limp: 50KA on 10/350 µs current impulse.
Imax: 200kA/Phase (8/20μs waveform).
With indication window and remote control contacts.
35mm DIN-rail.
BR-50GR series are Type 1 surge protective devices designed to discharge high current surges without any damage to the back-up electrical equipment.
Application:
• Used in the lightning protection zones concept at boundary LPZ0B-LPZ1.
• For protecting low-voltage consumer’s installations against indirect lightning discharges.
• Protect electrical and electronic equipment against transients, originating from lightning, switching of transformers, lighting, and motors.
Installation:
Better to under the guidance of professional electrician.
Green tab, normal work status, Red tab, failure status, need to be replaced rapidly.
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