Product characteristics:
| Specification | BR-50GR 150 3+1 | BR-50GR 275 3+1 | BR-50GR 320 3+1 | |
| 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 (L-N/N-PE) | 150V/255V(50/60Hz) | 275V/255V(50/60Hz) | 320V/255V(50/60Hz) |
| Lightning impulse current (10/350μs) | Iimp (L-N/N-PE) | 50kA/100kA | 50kA/100kA | 50kA/100kA |
| Nominal discharge current (8/20μs) | In (L-N/N-PE) | 50kA/100kA | 50kA/100kA | 50kA/100kA |
| Max. discharge current (8/20μs) | Imax (L-N/N-PE) | 200kA/200kA | 200kA/200kA | 200kA/200kA |
| Quantity of electric charge (L-N, N-PE) | Q | 25As, 50As | 25As, 50As | 25As, 50As |
| Specific energy (L-N, N-PE) | W/R | 625kJ/Ω, 2500kJ/Ω | 625kJ/Ω, 2500kJ/Ω | 625kJ/Ω, 2500kJ/Ω |
| Voltage protection level | Up (L-N/N-PE) | ≤2.3kV/≤1.5kV | ≤2.3kV/≤1.5kV | ≤2.3kV/≤1.5kV |
| Short-circuit current rating a.c. | Isccr (L-N/N-PE) | 25kA rms/100A rms | 25kA rms/100A rms | 25kA rms/100A rms |
| Max. backup fuse | 350A gG | 350A gG | 350A gG | |
| Temporary overvoltage TOV-withstand | UT (L-N) | 250V/120min. | 440V/120min. | 550V/120min. |
| Temporary overvoltage TOV-withstand | UT (N-PE) | 1200V/200ms | 1200V/200ms | 1200V/200ms |
| 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 | B17166 | B18167 | B17192 | |
| Order Code (With remote signaling) | B17167 | B18168 | B17193 | |
Features:
Endurable, sustains multiple strikes.
LED status indication.
Protection class: Type 1+2, Class I +Class II.
BR-50GR 3P+N is suitable for TT and TN-S system.
Application:
● Suitable for TT and TN-S system.
● Used in industrial systems and buildings with external lightning protection of Classes I to IV.
● For the protection of low voltage distribution systems against direct lightning strike into the overhead power supply line or external lightning protection system.
● Can be used in standard distributor housing.
● Used to protect all kinds of electrical equipment in the power system from lightning over-voltage, operation over-voltage, power frequency transient over-voltage impact damage to an electrical appliance.
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