BExS110D Explosion Proof Flare Horn Alarm Sounder



The flameproof BExS110 alarm sounders are suitable for Zone 1, 2, 21 & 22 applications. Approved to IECEx, ATEX, Ex EAC and INMETRO standards.

Sound level outputs of up to 117dB(A) at 1 metre with a choice of 32 alarm tones and 3 remotely selectable stages. The BEx range features enclosures manufactured from corrosion proof, marine grade copper free LM6 aluminium with chromate and powder coat finish. Available in MED approved and SIL2 compliant versions. For fire applications the BExS110D 24V dc siren is CPD EN89/106/EEC compliant (EN54-3 tested).


  • Electronic sounder up to 117dB
  • Ex d IIC zone 1, 2, 21 and 22 (IECEx)
  • Marine grade, corrosion proof, LM6 aluminium enclosure with Stainless steel fixings
  • 32 tones, includes ISO tones to Australian Standards
  • Automatic synchronization on multi-sounder systems*
  • Volume control
  • Three stage alarm
  • Line monitoring with blocking diode or optional EOL resistor
  • SIL2 compliant version available
  • Ingress protection IP66/67


Sound output: Max 117dB @ 1m

Sound frequency: 32 tones

Protection: IP66 (IP67)

Temp rating (°C): T4 -50 to +55°C

Duty: continuous

Cable entry: 2 x M20 ISO (one stopping plug included)

Construction: LM6 aluminium housing, stainless steel guard and mounting bracket

Weight: DC- 3.00kg, AC – 3.20kg

Approval: II 2G Ex d IIC T4 (max ambient temperature +55°C)

II 2G Ex d IIB T4 (max ambient temperature +70°C)

II 2D Ex tD A21 IP67 T115 (DIP)

Certificate: IECEx (KEM 10.0003)


* Synchronization requires sounders to be connected

to the same supply


For more detailed specifications, please click here