Flameproof BExS110 Alarm Sounders

Flameproof BExS110 Alarm Sounders



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12 VDC 24 VDC 48 VDC 115 VAC 230 VAC
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TOMAR Electronics 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 meter with a choice of 32 alarm tones and 3 remotely select-able stages. The BEx range features enclosures manufactured from corrosion proof, marine grade copper free LM6 aluminum 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).

  • Marine grade, corrosion proof, LM6 aluminum enclosure.
  • Ingress protection IP66/67
  • Stainless steel fixings
  • Dual M20 cable entries – adapters available.
  • Stopping plug included.
  • Reverse polarity diode fitted.
  • Automatic synchronization on multi-sounder system.
  • Very large termination area.
  • Ratchet adjustable stainless steel ‘U’ bracket.

Additional information


12 VDC, 24 VDC, 48 VDC, 115 VAC, 230 VAC


Model Voltage Current
BExS110DF-012X 12 VDC +/- 25% 195mA
BExS110DF-024X 24 VDC +/- 25% 265mA
BExS110DF-048X 48 VDC +/-25% 130mA
BExS110DF-115X 115 VAC +/-10% 50/60Hz 110mA
BExS110DF-230X 230 VAC +/- 10% 50/60Hz 56mA


Item Description
Maximum output 117dB (A) @ 1 meter [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 @ 1 KHz
Voltages DC 12vdc; 24vdc; 48vdc
Voltages AC 115vac; 230vac
Stage switching Negative or positive
Ingress protection IP66/67
Enclosure material Marine grade copper free LM6 Aluminum
Enclosure finish Chromate & powder coated finish – anti-corrosion.
Color RAL3000 Red
BExS110 horn High impact UL94 V0 & 5VA FR ABS (Red)
Cable entries Dual M20 ISO (one stopping plug incl.)
Terminals 0.5 – 2.5mm² (20-14 AWG)
Enclosure volume <2 liters
Line monitoring Blocking diode included
EOL Min. 500 Ohm 2w, or 3k3 Ohm 0.5w resistor or diode (DC versions) can be fitted
Grounding stud M5
Temperature range -50° to +70°C (-58°F to +158°F)
Relative humidity 90% at 20°C [68°F]
Weight DC3.00kg AC3.20kg
45 alarm tones – any tone can be assigned to any stage
User configurable continuous frequency tone
*SPL data +/-3dB (A). Measured at optimum voltage.

Tone Table

Stage 1 WAV file Frequency Description Stage 2 Stage 3
T 1 Sound Continuous 1000Hz Toxic Gas Alarm T 31 T 11
T 2 Sound Alternating 800/1000Hz at 0.25s intervals T 17 T 5
T 3 Sound Slow Whoop 500/1200Hz at 0.3Hz with 0.5s gap repeated T 2 T 5
T 4 Sound Sweeping 800/1000 at 1Hz T 6 T 5
T 5 Sound Continuous at 2400Hz T 3 T 27
T 6 Sound Sweeping 2400/2900Hz at 7Hz T 7 T 5
T 7 Sound Sweeping 2400/2900Hz at 1Hz T 10 T 5
T 8 Sound Siren 500/1200/500Hz at 0.3Hz T 2 T 5
T 9 Sound Sawtooth 1200/500Hz at 1Hz T 15 T 2
T 10 Sound Alternating 2400/2900Hz at 2Hz T 7 T 5
T 11 Sound Intermittent 1000Hz at 0.5Hz General alarm T 31 T 1
T 12 Sound Alternating 800/1000Hz at 0.875Hz T 4 T 5
T 13 Sound Intermittent 2400Hz at 1Hz T 15 T 5
T 14 Sound Intermittent 800Hz 0.25s on 1s off T 4 T 5
T 15 Sound Continuous at 800Hz T 2 T 5
T 16 Sound Intermittent 660Hz 150mS on, 150mS off T 18 T 5
T 17 Sound Alternating 544Hz (100mS)/440Hz(400mS) T 2 T 27
T 18 Sound Intermittent 660Hz 1.8s on, 1.8s off T 2 T 5
T 19 Sound 1400Hz to 1600Hz sweep up over 1s -1600Hz to 1400Hz sweep down over 0.5s T 2 T 5
T 20 Sound Continuous 660Hz T 2 T 5
T 21 Sound Alternating 554/440Hz at 1Hz T 2 T 5
T 22 Sound Intermittent 554Hz at 0.875Hz T 2 T 5
T 23 Sound 800Hz pulsing at 2Hz T 6 T 5
T 24 Sound Sweeping 800/1000Hz at 50Hz T 29 T 5
T 25 Sound Sweeping 2400/2900Hz at 50Hz T 29 T 5
T 26 Sound Simulated bell sound T 2 T 1
T 27 Sound Continuous 554Hz T 26 T 5
T 28 Sound Continuous 440Hz T 2 T 5
T 29 Sound Sweeping 800/1000Hz at 7Hz T 7 T 5
T 30 Sound 420Hz repeating 0.625s on, 0.625s off Australian alert signal T 32 T 5
T 31 Sound 1200/500Hz at 1 Hz Prepare to Abandon Platform T 11 T 1
T 32 Sound 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.

2 x M20 cable entries; brass stopping plug. 304 (A2) Stainless steel mounting bracket

32 onboard selectable tones

Approvals & Coding

IECEx KEM 10.0002X
IEC 60079-0
IEC 60079-1
IEC 60079-31
EN 60079-0
EN 60079-1
EN 60079-31
2012 + A11
TR-CU Ex EAC certificate RU C-GB.AA71.B.00109
VdS certificate G206011
CPD certificate 0786-CPD-20225
Safety-integrity level SIL1 (Standard)
Safety-integrity level SIL2 (Optional)
Inmetro certificate 10-IEx-0009
Marine Equipment Directive (MED) Certificate MEDB00001BU
  • II 2G Ex d IIB T4 Ta -50°C to +70°C
  • II 2G Ex d IIC T4 Ta -50°C to +55°C
  • II 2D Ex tb IIIC T100°C Db Ta -50°C to +55°C
  • II 2D Ex tb IIIC T115°C


Product Cutsheet


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