Securitron Fire Alarm Interface

Downloads, Certifications & Listings

The PDB-1R uses an end-of-line resistor to trigger a form "C" contact in response to a fire system alarm condition. In response to the trigger, the unit transfers power from the "Normally On" output to the "Normally Off" output. Additional triggered reactions include status feedback to fire control or annunciation systems, ground fault trigger and input trigger that latches until reset.

Product Features

  • Individual LED indicators show which output is powered
  • Form "C" contact indicates trigger status
  • Latching or non-latching mode
  • Can provide ground supervision via jumper configuration
  • Output triggers include:
    > Normally Open or Normally Closed with supervised End-of-Line resistor
    > Normally Closed override switch trigger input
    > Normally Closed Auxiliary switch trigger input
    > Ground fault detection
    > Trigger status reporting
  • MagnaCare® lifetime replacement, no fault warranty

Specification Data

  • 70mA used for relay control
  • Universal 11-29 VDC input
  • 2.23"W x 3.75"L x 0.8H
  • 15 amp transfer relay


3.75"H x 2.23"W x 0.8"D
3.41"H x 1.89"W

Shipping Weight:
0.75lbs. [0.45 Kg.]


Part # Description
PDB-1R Fire Trigger/Relay Interface Board


Patent pending and/or patent

Certifications and Listings
  • UL 294 Recognized
  • UL 603 Recognized
  • ULC-S318-96 Recognized