Product characteristics:
| Specification | BR-20 150 2P | BR-20 275 2P | BR-20 320 2P | BR-20 385 2P | BR-20 440 2P | |
| SPD classification according to EN61643-11 | Type 2 | Type 2 | Type 2 | Type 2 | Type 2 | |
| SPD classification according to IEC61643-11 | Class II | Class II | Class II | Class II | Class II | |
| Max. continuous operating a.c. voltage | Uc | 150V | 275V | 320V | 385V | 440V |
| Nominal discharge current (8/20μs) | In | 10kA | 10kA | 10kA | 10kA | 10kA |
| Max. discharge current (8/20μs) | Imax | 20kA | 20kA | 20kA | 20kA | 20kA |
| Voltage protection level | Up | ≤0.8kV | ≤1.3kV | ≤1.5kV | ≤1.8kV | ≤2.0kV |
| Voltage protection level 5kA | Up | ≤0.6kV | ≤1kV | ≤1.2kV | ≤1.4kV | ≤1.6kV |
| Max. backup fuse | 63A gG | 63A gG | 63A gG | 63A gG | 63A gG | |
| Short-circuit withstand capacity | Isccr | 25kA | 25kA | 25kA | 25kA | 25kA |
| Temporary overvoltage TOV-withstand | UT | 175V/5sec. | 335V/5sec. | 350V/5sec. | 550V/5sec. | 580V/5sec. |
| Temporary overvoltage TOV-safe failure | UT | 250V/120min. | 440V/120min. | 550V/120min. | 660V/120min. | 770V/120min. |
| Response time | tA | ≤25ns | ≤25ns | ≤25ns | ≤25ns | ≤25ns |
| Operating temperature range | Tu | -40℃-80℃ | -40℃-80℃ | -40℃-80℃ | -40℃-80℃ | -40℃-80℃ |
| Operating state/fault indication | green/red | green/red | green/red | green/red | green/red | |
| Cross-section area (Min.) | 4mm² | 4mm² | 4mm² | 4mm² | 4mm² | |
| Cross-section area (Max.) | 35mm² | 35mm² | 35mm² | 35mm² | 35mm² | |
| For mounting on | 35mm Din rail | |||||
| Enclosure material | Thermoplastic UL94-V0 | |||||
| Degree of protection | IP20 | IP20 | IP20 | IP20 | IP20 | |
| Order Code | B18721 | B18723 | B18725 | B18727 | B18729 | |
| Order Code (With remote signaling) | B18722 | B18724 | B18726 | B18728 | B18730 | |
Features:
• Designed according to IEC 61643-11.
• Single-phase protection for TN-S system.
• Pluggable module, easy for installation and maintenance.
• High discharge capacity, quick response.
• Green window will change when fault.
• Remote alarm control: Optional.
Application:
• Protecting low voltage equipment from surge damages.
• Applied in modular SPD Class II (Class C) for TN-S power supply system.
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