Product characteristics:
| Specification | BR-25M 150 3+1 | BR-25M 275 3+1 | BR-25M 320 3+1 | |
| SPD classification according to EN61643-11 | Type 1 + 2 + 3 | Type 1 + 2 + 3 | Type 1 + 2 + 3 | |
| SPD classification according to IEC61643-11 | Class I + II + III | Class I + II + III | Class I + II + III | |
| 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) | 25kA/100kA | 25kA/100kA | 25kA/100kA |
| Total discharge current (10/350μs) | Itotal | 100kA | 100kA | 100kA |
| Nominal discharge current (8/20μs) | In (L-N/N-PE) | 25kA/100kA | 25kA/100kA | 25kA/100kA |
| Max. discharge current (8/20μs) | Imax (L-N/N-PE) | 120kA/200kA | 120kA/200kA | 120kA/200kA |
| Quantity of electric charge (L-N, N-PE) | Q | 12.5As, 50As | 12.5As, 50As | 12.5As, 50As |
| Specific energy (L-N, N-PE) | W/R | 156kJ/Ω, 2500kJ/Ω | 156kJ/Ω, 2500kJ/Ω | 156kJ/Ω, 2500kJ/Ω |
| Voltage protection level | Up (L-N/N-PE) | ≤0.8kV/≤1.5kV | ≤1.3kV/≤1.5kV | ≤1.3kV/≤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 | 200A gG | 200A gG | 200A gG | |
| Temporary overvoltage TOV-withstand | UT(L-N) | 175V/5sec. | 335V/5sec. | 350V/5sec. |
| Temporary overvoltage TOV-safe failure | UT(L-N) | 250V/120min. | 440V/120min. | 550V/120min. |
| Temporary overvoltage TOV-withstand | UT(N-PE) | 1200V/200ms | 1200V/200ms | 1200V/200ms |
| Leakage current | Ipe | ＜2mA | ＜2mA | ＜2mA |
| Response time | tA | ≤25ns/≤100ns | ≤25ns/≤100ns | ≤25ns/≤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 | B17208 | B18163 | B17221 | |
| Order Code (With remote signaling) | B17209 | B18164 | B17222 | |
Features:
The surge arrestors BR-25M meet the Class I and Class II requirement class according to IEC 61643-11.
Labeled connections.
Electrical surge protector work by diverting the extra energy in the electrical surge away from the main circuit, usually to “earth”.
Surge protection devices (SPD) which is connected at the main distribution board is constantly monitoring the supply voltage.
Application:
These devices protect low-voltage consumer systems from overvoltage.
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