Sounder Beacon Base

The Sounder Beacon Base is a loop-powered sounder and visual indicator combined with a standard Intelligent Mounting Base. It is used to signal a fire alarm in enclosed areas.

  • Two volume ranges 55-75dB(A) and 75-91dB(A)
  • Visual indicator flash rate of once per second
  • Synchronisation of 'alert' and 'evacuate' tones
  • Synchronisation of visual indicator flash
  • Individual and group addressing
  • Unique acoustic and visual indicator self-test
  • Built-in Isolator (SEN-A4007)


Operating voltage 17–28V DC (polarity sensitive)
Protocol pulses 5–9V
Current consumption at 24V switch-on surge <1.2mA
quiescent 300μA
sounder operated
55–75dB or 75–91dB		 8mA
Maximum sound output at 90° 91dB(A)
Operating temperature -20°C to 60°C
Humidity (no condensation) 0–95%
IP rating 21C
Dimensions (diameter x height) 100 mm x 31.25 mm


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