BExS110 Explosion Proof Alarm Horn - Radial Omni-directional

  • Omni-directional sound output.
  • Marine grade, corrosion proof, LM6 aluminium enclosure.
  • Ingress protection IP66/67
  • Stainless steel fixings
  • Dual M20 cable entries - adaptors available.
  • Stopping plug included.
  • Reverse polarity diode fitted.
  • Automatic synchronisation on multi-sounder system.
  • Very large termination area.
  • Ratchet adjustable stainless steel ‘U’ bracket.
  • ‘Stage Programmable’ version available:
    - 45 alarm tones
    - 4 remotely selectable stages
    - Any tone can be assigned to any stage
    - User configurable continuous frequency tone


  • IECEx KEM 10.0003X
  • TR-CU Ex EAC certificate: RU C-GB.AA71.B.00109
  • Safety-integrity suitability: SIL1
  • INMETRO certificate: 10-IEx-0009
BExS110 Explosion Proof Alarm Horn - Radial Omni-directional
Ex-eac-logo Eac-logo Iecex-approval Atex-approval Ce-approval Inmetro-approval

BExS110 Explosion Proof Alarm Horn - Radial Omni-directional

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 ouputs are 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.


Maximum output: 117dB(A) @ 1 metre [108dB(A) @ 10ft/3m]
Nominal output: 110dB(A) @ 1m +/- 3dB - Tone 2 [101dB(A) @ 10ft/3m]
No. of tones: 32 (UKOOA / PFEER compliant)
No. of stages: 3
Volume control: Max. 110dB(A);
Min. 72dB(A) - Tone 2
Effective range: 100m/328ft @ 1KHz
Voltages DC: 12vdc; 24vdc; 48vdc
Voltages AC: 115vac; 230vac
Stage switching: Negative or positive
Ingress protection: IP66/67
Enclosure matl: Marine grade copper free LM6 Aluminium
Enclosure finish: Chromate & powder coated finish - anti-corrosion.
Colour: RAL3000 Red
Grey RAL7038
Special - available on request
BExS110 horn: High impact UL94 V0 & 5VA FR ABS
Cable entries: Dual M20 ISO (one stopping plug inc)
Terminals: 0.5 - 2.5mm² (20-14 AWG)
Enclosure volume: <2 litres
Line monitoring: Blocking diode included
EOL Min. 500 Ohm 2w, or 3k3 Ohm 0.5w resistor
or diode (DC versions) can be fitted
Relative humidity: 95% - Additional tropicalisation is recommended for applications where both high relative humidity and high ambient temperatures exist
Weight: DC: 3.00kg/6.6Ibs AC: 3.20kg/7.04Ibs
Option P1: Stage programmable - 4 remotely selectable stages
45 alarm tones - any tone can be assigned to any stage
User configurable continuous frequency tone
Option T1: Tropicalised version
*SPL data +/-3dB(A). Measured at optimum voltage.

Current Consumption

Version: Voltage: Current:
12V dc +/-25% 195mA
24V dc +/-25% 265mA
48V dc +/-25% 130mA
115V ac 50/60Hz +10/-10% 110mA
230V ac 50/60Hz +10/-10% 56mA

Part Codes

Version: Part code:
Product type: BExS110 Explosion proof alarm horn sounder
Type: DR Ex d, Radial omni-directional horn
Voltage: DC012
12V dc
24V dc
48V dc
115V ac
240V ac
Cable Entry Type:[e]

2 x M20x1.5mm
2 x 1/2" NPT - adaptors
2 x 3/4" NPT - adaptors
2 x M25x1.5mm - adaptors
1 x 1/2" NPT - adaptor
1 x 3/4" NPT - adaptor
1 x M25x1.5mm - adaptor
M20 stopping plugs for unused entries supplied
plug material: [m]
Nickel Plated
Stainless Steel
Bracket material: [s] 1
A2 304 Stainless Steel
A4 316 Stainless Steel
A2 304 St/St with Equip. Tag
A4 316 St/St with Equip. Tag (304)
Product version: [v] A1
Stage programmable - IECEx, ATEX, Ex EAC & INMETRO
Tropicalised - IECEx, ATEX, Ex EAC & INMETRO
Enclosure colour: [x] R
Red RAL3000
Grey RAL7038
Special - contact E2S


  • II 2G Ex d IIB T4 Ta -50° to +70°C
  • II 2G Ex d IIC T4 Ta -50° to +55°C
  • II 2D Ex tb IIIC T100°C Db Ta -50°C to +55°C
  • II 2D Ex tb IIIC T115°C Db Ta -50°C to +70°C

Tone Table

Stage 1 WAV file Frequency Description. Stg 2 Stg 3
T 1 /system/1/assets/files/000/000/405/405/214ccf82a/original/TF037.WAV Continuous 1000Hz Toxic Gas Alarm T 31 T 11
T 2 /system/1/assets/files/000/000/419/419/e353c86c4/original/TF002.WAV Alternating 800/1000Hz at 0.25s intervals T 17 T 5
T 3 /system/1/assets/files/000/000/417/417/abf396de0/original/TF003.WAV Slow Whoop 500/1200Hz at 0.3Hz with 0.5s gap repeated T 2 T 5
T 4 /system/1/assets/files/000/000/420/420/50f9ee7a7/original/TF004.WAV Sweeping 800/1000 at 1Hz T 6 T 5
T 5 /system/1/assets/files/000/000/421/421/b578af8a9/original/TF005.WAV Continuous at 2400Hz T 3 T 27
T 6 /system/1/assets/files/000/000/422/422/42b72dd93/original/TF006.WAV Sweeping 2400/2900Hz at 7Hz T 7 T 5
T 7 /system/1/assets/files/000/000/373/373/a686b0abe/original/TF007.WAV Sweeping 2400/2900Hz at 1Hz T 10 T 5
T 8 /system/1/assets/files/000/000/376/376/00cd26f9e/original/TF008.WAV Siren 500/1200/500Hz at 0.3Hz T 2 T 5
T 9 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV Sawtooth 1200/500Hz at 1Hz T 15 T 2
T 10 /system/1/assets/files/000/000/374/374/021ee6540/original/TF010.WAV Alternating 2400/2900Hz at 2Hz T 7 T 5
T 11 /system/1/assets/files/000/000/377/377/ac5498db0/original/TF011.WAV Intermittent 1000Hz at 0.5Hz General alarm T 31 T 1
T 12 /system/1/assets/files/000/000/375/375/771bd7a3e/original/TF012.WAV Alternating 800/1000Hz at 0.875Hz T 4 T 5
T 13 /system/1/assets/files/000/000/378/378/6380218ec/original/TF013.WAV Intermittent 2400Hz at 1Hz T 15 T 5
T 14 /system/1/assets/files/000/000/379/379/51c1bb5a9/original/TF014.WAV Intermittent 800Hz 0.25s on 1s off T 4 T 5
T 15 /system/1/assets/files/000/000/380/380/06feaa7b3/original/TF015.WAV Continuous at 800Hz T 2 T 5
T 16 /system/1/assets/files/000/000/381/381/93f51c79a/original/TF016.WAV Intermittent 660Hz 150mS on, 150mS off T 18 T 5
T 17 /system/1/assets/files/000/000/382/382/2c2978b6a/original/TF017.WAV Alternating 544Hz (100mS)/440Hz(400mS) T 2 T 27
T 18 /system/1/assets/files/000/000/397/397/d6d84d0c3/original/TF018.WAV Intermittent 660Hz 1.8s on, 1.8s off T 2 T 5
T 19 /system/1/assets/files/000/000/383/383/11797b764/original/TF019.WAV 1400Hz to 1600Hz sweep up over 1s -1600Hz to 1400Hz sweep down over 0.5s T 2 T 5
T 20 /system/1/assets/files/000/000/384/384/5c30f9f4d/original/TF020.WAV Continuous 660Hz T 2 T 5
T 21 /system/1/assets/files/000/000/385/385/a85a0a356/original/TF021.WAV Alternating 554/440Hz at 1Hz T 2 T 5
T 22 /system/1/assets/files/000/000/387/387/d33e565a9/original/TF022.WAV Intermittent 554Hz at 0.875Hz T 2 T 5
T 23 /system/1/assets/files/000/000/388/388/b4cf9203e/original/TF023.WAV 800Hz pulsing at 2Hz T 6 T 5
T 24 /system/1/assets/files/000/000/389/389/68683d240/original/TF024.WAV Sweeping 800/1000Hz at 50Hz T 29 T 5
T 25 /system/1/assets/files/000/000/398/398/7c1bf5e00/original/TF025.WAV Sweeping 2400/2900Hz at 50Hz T 29 T 5
T 26 /system/1/assets/files/000/000/395/395/631e82dc8/original/TF026.WAV Simulated bell sound T 2 T 1
T 27 /system/1/assets/files/000/000/390/390/10abe0caa/original/TF027.WAV Continuous 554Hz T 26 T 5
T 28 /system/1/assets/files/000/000/391/391/5f7a58b54/original/TF028.WAV Continuous 440Hz T 2 T 5
T 29 /system/1/assets/files/000/000/392/392/68d5d1294/original/TF029.WAV Sweeping 800/1000Hz at 7Hz T 7 T 5
T 30 /system/1/assets/files/000/000/402/402/9168c8c48/original/TF035.WAV 420Hz repeating 0.625s on, 0.625s off Australian alert signal T 32 T 5
T 31 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV 1200/500Hz at 1 Hz Prepare to Abandon Platform T 11 T 1
T 32 /system/1/assets/files/000/000/400/400/aba6c8a51/original/TF036.WAV Sweeping 500/1200Hz 3.75s on, 0.25s off 15Hz T 26 T 1
Country specific or custom tone configurations and alarm frequencies are available upon request.