Product characteristics:
| Specification | BR-12.5M 150 1+1 | BR-12.5M 275 1+1 | BR-12.5M 320 1+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 | |
| 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) | 12.5kA/25kA | 12.5kA/25kA | 12.5kA/25kA |
| Nominal discharge current (8/20μs) | In(L-N/N-PE) | 25kA/50kA | 25kA/50kA | 25kA/50kA |
| Max. discharge current (8/20μs) | Imax(L-N/N-PE) | 60kA/100kA | 60kA/100kA | 60kA/100kA |
| Specific energy | W/R(L-N/N-PE) | 39kJ/Ω, 156kJ/Ω | 39kJ/Ω, 156kJ/Ω | 339kJ/Ω, 156kJ/Ω |
| Voltage protection level | Up(L-N/N-PE) | ≤0.8kV/≤1.5kV | ≤1.3kV/≤1.5kV | ≤1.5kV/≤1.5kV |
| Short-circuit current rating a.c. | Isccr | 25kA rms | 25kA rms | 25kA rms |
| Max. backup fuse | 125A gG | 125A gG | 125A 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 |
| Response time | tA(L-N/N-PE) | ≤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 | B18617 | B18619 | B18621 | |
| Order Code (With remote signaling) | B18618 | B18620 | B18622 | |
Features:
Modular and plug-in arrestor.
Type 1+2 surge arrestor according to EN 61643-11.
Lightning current arresting capacity 12.5 kA (10/350us) per pole.
Operating state / fault indication by green / red indicator flag in the inspection window.
Remote signaling can be selectable.
Universally suitable for TT systems.
Application:
For general protection of big installations and protection of small installations with external lightning protection.
Installation:
Before installation, it should be check whether the surge protector is intact. If it is damaged or the display window is red, it cannot be used; if the window is green, it is normal.
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