DC Signal Line Surge Protectors (BPS-B Series) Hardwired Surge Protection
- Sheet
- P
- Listing
- None published
- Origin
- Hamilton Twp, NJ
- Revised
- 2026-08-27
The BPS-B Series is a wall-mount DC signal line surge protector for telephone, datacom and instrumentation lines, in one, two and four pair versions, with a removable protection circuit board. It connects through screw terminals.
Features
- 1, 2, or 4 pair protection units
- All types of telephone and data lines
- Removable protection circuit board
- Maximum line current is 300 mA
- Wall or surface mount
- IEC-61643-21
- UL4197B
Specifications
| Configuration 1-pair unit 2-pair unit 4-pair unit | BPS-B180-T BPS-B280-T BPS-B480-T | BPS-B180-48D3 BPS-B280-48D3 BPS-B480-48D3 | BPS-B180-24D3 BPS-B280-24D3 BPS-B480-24D3 | BPS-B180-12D3 BPS-B280-12D3 BPS-B480-12D3 | BPS-B180-06D3 BPS-B280-06D3 BPS-B480-06D3 | BPS-B280-06DBC BPS-B280-06DBC BPS-B480-06DBC |
|---|---|---|---|---|---|---|
| Application | Telephone Line ADSL SDSL-HSDSL | ISDN-T0 48 V Line | Leased Line 4-20mA | RS232 RS485 | RS422 | T2-T1 10BaseT |
| Configuration -B180… / -B280… / -B480… | 1 pair / 2 pairs / 4 pairs | – / 1 channel / 2 channels | LS 2 wires / 1 pair / LS 4 wires / 2 pairs / 2 LS 4 wires / 2×2 pairs | 2 wires / 4 wires / 8 wires | 1 pair / 2 pairs / 4 pairs / 2×2 pairs | – / 1 channel / 2 channels |
| Normal Line Voltage (Un) | 150V | 48V | 24V | 12V | 6V | 6V |
| Maximum Line Voltage (Uc) | 170V | 53V | 28V | 15V | 8V | 8V |
| Maximum Line Current (IL) | 300mA | 300mA | 300mA | 300mA | 300mA | 300mA |
| Maximum Frequency | > 10 MHz | > 3 MHz | > 3 MHz | > MHz | > 3 MHz | > 20 MHz |
| Protection Level (Up) 8/20us impulse – 5 kA | 220V | 70V | 40V | 30V | 20V | 25V |
| Normal Discharge Current (In) 8/20us impulse – 10 times | 5kA | 5kA | 5kA | 5kA | 5kA | 5kA |
| Max Discharge Current (Imax) 8/20us impulse – 1 time | 20kA | 20kA | 20kA | 20kA | 20kA | 20kA |
| Lightning Current (Iimp) 10/350us – impulse – 2 times | 5kA | 5kA | 5kA | 5kA | 5kA | 5kA |
| Type of Diagram | A | B | B | B | B | C |
| End of Life | Short-circuit | Short-circuit | Short-circuit | Short-circuit | Short-circuit | Short-circuit |
Compliance and listings
Standards cited: IEC-61643-21, UL4197B, NF EN 61643-21 (France), UL497B (USA)
Typical applications
BPS-B units are specified on telephone, ADSL, ISDN, leased line, RS232, RS422, RS485, T1 and 10BaseT circuits, chosen by line voltage from the table above. Special versions combine data pair protection with a remote DC power line.
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