NIVUS – BSL0DP2X12/12Ex – DataPro Surge Protector, 2‑Channel 12 V/12 V, ATEX Ex

Main Features

• Manufacturer: NIVUS GmbH – accessories protection for sensors and transmitters  

• Model/MPN: BSL0DP2X12/12Ex – DataPro series surge protection device (12 V to 12 V, 11 µH)  

• Device Type: Two-stage surge protector designed for protection of data and signal lines in explosive environments (ATEX Zone 1)  

• Protection Circuit:

  • Primary stage: Gas-filled surge arresters

  • Secondary stage: Suppressor diodes (no varistors, ensuring negligible leakage currents)  

• Electrical Ratings:

  • Nominal operating voltage: ≤ 15 V DC

  • Max load current: 1 A per channel; inductance ~11 µH

  • Impulse discharge current up to 20 kA (8/20 µs)  

• Ex Compliance: Certified for use in Ex ib IIB T4 environments (ATEX) – IBExU07ATEX1141  

• Mounting: DIN-rail snap-on design; compact housing for inline installation in field electronics cabinets

• Maintenance-free Design: Built to be fail-safe with no routine inspection—only recommended post-lightning checks for insulation; no regular maintenance needed

Overview

The BSL0DP2X12/12Ex from the DataPro series is engineered for safeguarding sensitive instrumentation—like flowmeters, level sensors, and field transducers operating at 12 V DC—from surges and lightning transients. Its Ex-rated design (ATEX Zone 1) ensures operator safety in hazardous atmospheres. The unique combination of gas discharge and diode suppression provides robust, low-leakage protection ideal for building reliable, compact sensor protection circuits.

Useful Notes:

• Installation tip: Mount the device as close as possible to the equipment being protected, and avoid routing protected and unprotected lines together  .

• Testing after lightning season is the only recommended maintenance step to verify insulation resistance and functionality  .