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E2S D2xS1 Alarm Horn Sounder

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The D2xS1 is a high output, 116dB(A) alarm horn sounder. Low current consumption and high SPL in a compact robust Type 4/4X, IP66 enclosure ensure the D2xS1 is suitable for all haz loc fire alarm system and general signaling applications. The corrosion proof, marine grade aluminum die cast enclosure is chromated and powder coated providing resilience in the harshest of environments. This device is globally certified: ATEX, IECEx Zone 2 & 22; NEC/CEC CI D2 and CII D2; NEC CI Zone 2 and Zone 22; CEC Zone 2 & 22 and CII D2. UL, cUL & ULC approved 24Vdc version for public mode fire alarm use.


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  • High output, up to 116dB(A)
  • 4 remotely selectable alarm stages/channels
  • Choice of 64 alarm tone frequencies
  • Automatic synchronization on multi-sounder system
  • UL464 Fire Alarm
  • CAN/ULC-S525 Fire Alarm

Additional information

Weight 9 lbs
Dimensions 16 × 10 × 9 in

Technical Data

Maximum output: 116dB(A) @ 1 meter [107dB(A) @ 10ft/3m]
Nominal output: 112dB(A) @ 1m +/- 3dB – Tone 2 [103dB(A) @ 10ft/3m]
No. of tones: 64 (UKOOA / PFEER compliant)
No. of stages: 4
Volume control: Adjustable -12dB(A) [Tone 2]
Effective range: 125m/410ft @ 1KHz
Voltages DC: 24V dc (10-30V dc);
48V dc (38-58V dc
Voltages AC: 115V ac 50/60Hz;
230V ac 50/60Hz
Stage switching: DC units: negative or positive
AC units: common supply line
Ingress protection: EN60529: IP66
UL50E / NEMA250: 4 / 4X / 3R / 13
Housing material: Marine grade aluminum Al Si12 Cu
Color: Red (RAL3000), Grey (RAL7038)
Cable entries: 2 x M20 x 1.5mm threaded gland entries
Adaptors available to 1/2″NPT, 3/4″NPT and M25
Terminals: 0.5 – 2.5mm² (20-14 AWG)
Grounding stud: M5
Operating temp: -40 to +70°C [-40° to +158°F] – Class I Div 2
-40 to +50°C [-40° to +122°F] – All other markings
Relative humidity: 95%
Weight: DC: 2.48kg/4.96Ibs AC:2.73kg/5.46lbs


  • UL File ref: E230764
  • IECEx cert: IECEx ULD 14.0004X
  • ATEX cert: DEMKO 14 ATEX 4786493904X
  • CSFM listing: 7136-2279:0503
  • Ex EAC certified: ЕАC RU C-GB.АА71.В.00273/20


  • NEC / CEC: Class I Div 2 ABCD T3C Ta -40°C to +70°C
    Class I Div 2 ABCD T4 Ta -40°C to +65°C, T4A Ta -40°C to +50°C
    Class II Div 2 FG T5 Ta -40°C to +50°C, T6 Ta -40°C to +45°C
    Class III Div 1&2 Ta -40°C to +50°C
  • NEC: Class I Zone 2 AEx nA IIC T4 Gc (Ta -40°C to +50°C)
    Zone 22 AEx tc IIIC 90°C Dc (Ta -40°C to +50°C)
  • CEC: Class I Zone 2 Ex nA IIC T4A Gc X (Ta -40°C to +50°C)
    Zone 22 Ex tc IIIC 90°C Dc (Ta -40°C to +50°C
    Class II Div 2 EFG T5 Ta -40°C to +50°C
  • IECEx & ATEX: II 3G Ex nA IIC T4 Gc (Ta -40°C to +50°C)
    II 3D Ex tc IIIC 90°C Dc (Ta -40°C to +50°C)


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