Product characteristics:
| Specification | BR-12.5M 150 2P | BR-12.5M 275 2P | BR-12.5M 320 2P | |
| 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 | 150V(50/60Hz) | 275V(50/60Hz) | 320V(50/60Hz) |
| Lightning impulse current (10/350μs) | Iimp | 12.5kA | 12.5kA | 12.5kA |
| Nominal discharge current (8/20μs) | In | 25kA | 25kA | 25kA |
| Max. discharge current (8/20μs) | Imax | 60kA | 60kA | 60kA |
| Specific energy | W/R | 39kJ/Ω | 39kJ/Ω | 39kJ/Ω |
| Voltage protection level | Up | ≤0.8kV | ≤1.3kV | ≤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. |
| Response time | tA | ≤25ns | ≤25ns | ≤25ns |
| 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 | B18211 | B18213 | B18215 | |
| Order Code (With remote signaling) | B18212 | B18214 | B18216 | |
Features:
Type 1+2.
High discharge capacity in a certain small size.
High follow current extinction and limitation due to no follow current technology.
Reliable safety due to double integrated disconnections with double protections.
Failure indication window, remote alarm terminal optional.
Plug design, easy maintenance.
High security performance.
Green light in notice window indicates normal; red indicates broken, replacement notice, which is clear and easy distinguished.
Indoor fixed installation, voltage limited type.
Small volume, pluggable.
Application:
To prevent power supply equipment from being damaged by surge and lightning.
Use on buildings in applications where there is an external lightning protection system installed, usually installed at the service entrance.
Widely used in the transformer low-voltage side as the first protection of the power supply.
Installation:
Installed in low-voltage distributions at the boundary of LPZ 0–LPZ 1 zones and higher to prevent overvoltage effects induced during a lightning strike and to prevent switching overvoltage.
Install in the main distribution cabinet/box of the low-voltage cabinet and the incoming line cabinet.
Recommended for main distribution boards.
During installation, please connect according to the installation schematic diagram, where L1, L2 and L3 are phase lines, N is the zero line and PE is the ground line.
Grounding should conform to the requirements of the specification of lightning protection.
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