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AB112LDA Alarm Horn Sounder & LED Beacon 2-31-220

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The AB112LDA combines a compact high output 120dB(A) alarm sounder with a powerful multi-function L.E.D. beacon. Featuring 64 alarm tone frequencies and 4 remotely activated stages/channels.
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Voltage
Back box/cable entries
Stopping plug material
Equip. tag/Duty label
Product version
Product option
Enclosure
Lens colour
Part Number:
AB112LDA
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Alarm Horn Sounder & LED Beacon

Upgraded Product:

  • New enhanced version
  • 64 alarm tones
  • 4 remotely activated alarm stages
  • Low in-rush electronics
  • Auto-synchronised horn and beacon
  • Pluggable, duplicated cable terminals
  • Dual cable entries with stopping plugs

Description

The low current consumption and high SPL in a robust fire retardant enclosure ensure the AB112LDA is suitable for all general signalling applications. The alarm horn sounder & LED beacon may be connected from a single or separate supplies for simultaneous or independent operation. The DC voltage versions feature 6 user selectable synchronised flash modes including rotating, flashing and steady. An alternative second stage beacon mode can be remotely activated via a third wire (as can alternative alarm tones on the horn sounder) enabling an audible and visual communication of a two stage alarm condition.

Downloads

Datasheet Datasheet.pdf
Installation Manual D118-01-701-IS_Issue_1__AB112LDA_.pdf
Russian EAC Declaration of Conformity D-GB.GA05.B.12595-20-24.03.2025.pdf
Russian Maritime register 19.00193.278.pdf
Declaration of Conformity DC-027_Issue_F_Spectralarm.pdf
2D drawing (PDF) D118-05-501_Issue_1.pdf
2D drawing (DWG) D118-05-501_Issue_1.DWG
3D drawing (STEP) D118-05-501-3D_Issue_A.STEP
Wiring Schematic D118-06-501_Issue_1.pdf

Features

  • Automatic synchronisation on multi-sounder system
  • Synchronised flash rates
  • Continuously rated
  • Stainless steel fixings
  • Unit can be mounted using external lugs or internal fixing positions
  • Dual M20 or 1/2"NPT clearance cable entries
  • Duplicate pluggable cable terminations – Class A
  • Diode polarized for use in supervised circuits
  • 64 alarm tone frequencies and 4 remotely activated alarm stages
  • Available with custom tone configurations and frequencies
  • 6 LED beacon modes including rotating and steady functions
  • DC voltage units feature a second remotely selectable beacon mode stage
  • Can be mounted in any orientation

Specification

Alarm Horn:
Maximum output: High power level: 120dB(A) @ 1 m ±3dB
[111dB(A) @ 10ft/3m ±3dB]
Default power level: 117dB(A) @ 1 m ±3dB
[108dB(A) @ 10ft/3m ±3dB]
Nominal output: High power level: 118dB(A) @ 1m ±3dB
[109dB(A) @ 10ft/3m ±3dB]
Default power level: 114dB(A) @ 1m ±3dB
[105dB(A) @ 10ft/3m ±3dB]
No. of tones: 64 (UKOOA / PFEER compliant)
No. of stages: 4
Volume control: Full range to 0dB(A)
Effective range: High power level: 214m/702ft @ 1KHz
Default power level: 153m/502ft @ 1KHz
In rush: 815mA within 4.0ms @ 24Vdc
Stage switching: Negative (common positive)
LED Beacon:
Light source: Array of 16 multi-function high power LEDs
Operating modes: 4 rotating configurations
4 flashing configurations
Steady mode for indicator / status applications
Peak/Effective Intensity cd: 19 cd* – measured ref. to I.E.S.
No. of stages: DC unit also features a remotely selectable
2nd and 3rd stage flash pattern.
LED/lens colours: Amber, Blue, Clear (white LEDs),
Green, Red & Yellow
General:
Ingress protection: IP65
Enclosure: High impact UL94 V0 & 5VA FR ABS/PC
Lens colour filter: Field replaceable UV stable PC
Terminals: 0.5 – 2.5mm² (20-14 AWG)
Line monitoring: Diode polarized for use in supervised circuits
Operating: -40 to +66°C [-40° to +151°F]
Storage: -40 to +70°C [-40° to +158°F]
Relative humidity: 95% at 20°C [68°F]
Weight DC: 2.00kg / 4.40Ibs
Weight AC: 2.30kg / 5.06Ibs

Current Consumption

Product Version: Nominal Voltage: Voltage Range: Beacon Current: Horn
Default Power Level
Current:		 Horn
High Power Level
Current:
DC024 12Vdc
24Vdc
48Vdc		 10-50Vdc 250mA
250mA
250mA		 280mA
225mA
122mA		 376mA
430mA
223mA
AC230 115Vac
230Vac		 90-253Vac 50/60Hz/120-253Vdc 90mA
50mA		 100mA
65mA		 173mA
105mA

Part Codes

Variable: Identifier: Description:
Product type: AB112LDA Combined alarm horn sounder & LED beacon
Voltage: DC024
AC230		 24Vdc (10-50Vdc)
90-253Vac 50/60Hz/120-253Vdc
Back box/cable entries: [e] A Back box with mounting lugs – 2 x M20, 1/2"NPT clearance
Stopping plug material: [m] A ABS
Equip. tag/Duty label: [s] 0
1
2		 No equip. tag or Duty label
316 (A4) St/St Equip. tag/Duty label
Metalised Polyester Equip. tag/Duty label
Product version:
[v]		 A RMRS, EAC, CE, UKCA
Product option:
[o]		 1
Z
X
Y		 Standard product
Custom alarm tone software – contact E2S
Custom configuration – contact E2S
Stage control Config. 4 or 8
Enclosure colour: [x] G
R
S		 Grey
Red
Special colour – contact E2S
Lens colour: [y] A
B
C
G
M
R
Y		 Amber
Blue
Clear
Green
Magenta
Red
Yellow
Alarm stage control:
Please review the installation manual and wiring schematics for remote stage control and EOL resistor monitoring configuration options:
Config. 1 or 5 [DC]: Factory default. Common negative, positive switching. Up to 4 Alarm Stages. EOL monitoring Alarm Stage 1 only
Config. 2 or 6 [DC]: User setting. Common positive, negative switching. Up to 4 Alarm Stages. EOL monitoring Alarm Stage 1 only
Config. 3 or 7 [DC]: User setting. Common negative, positive switching activation of Alarm Stages 1 & 2 with EOL on both stages. Reverse polarity monitoring
Config. 4 or 8 [DC]: Product option ‘Y’. Independent activation of Alarm Stages 1 & 2 with EOL on both stages. Forward polarity monitoring
Config. 9 or 10 [AC]: Factory default. Up to 4 Alarm Stages. Stage 1 activated at power on. Stages 2, 3 and 4 via volt free contacts

Approvals

  • UKCA
  • CE
  • EAC: CU TR 04/2011 CU TR 20/2011
  • Russian Marine Register of Shipping

Multi-function patterns

Mode: Stage 1 Stage2 [DC only] Stage3 [DC only]
1 All L.E.D’s on Alternate Side Flash 2Hz Double Strike Flash 2Hz
2 Rotating: Slow1 Alternate Side Flash 2Hz All L.E.D’s on
3 Single Strike Flash 2Hz Rotating: Fast 2 All L.E.D’s on
4 Rotating: Fast 1 Single Strike Flash 2Hz All L.E.D’s on
5 Rotating: Slow 2 Double Strike Flash 1Hz All L.E.D’s on
6 Double Strike Flash 2Hz Rotating: Fast 2 All L.E.D’s on
7 Rotating: Fast 2 Double Strike Flash 2Hz All L.E.D’s on
8 Double Strike Flash 1Hz Alternate Side Flash 2Hz All L.E.D’s on
9 Alternate Side Flash 2Hz Rotating: Fast 2 All L.E.D’s on

Tone Table

Stage 1 WAV file Frequency Description. Stage 2 Stage 3 Stage 4
T 1 1000 Continuous – PFEER Toxic Gas Any T 2 T 44
T 2 1200/500 @ 1Hz Sweeping – DIN / PFEER P.T.A.P. Any T 3 T 44
T 3 1000 @ 0.5Hz (1s on, 1s off) Intermittent – PFEER Gen. Alarm Any T 2 T 44
T 4 1.4KH-1.6KHz 1s, 1.6KHz-1.4KHz 0.5s – NF C 48-265 Any T 24 T 1
T 5 544(100mS)/440 (400mS) – NF S 32-001 Any T 19 T 1
T 6 1500/500 – (0.5s on , 0.5s off) x3 + 1s gap – AS4428 Any T 44 T 1
T 7 500-1500Hz Sweeping 2 sec on 1 sec off – AS4428 Any T 44 T 1
T 8 500/1200Hz @ 0.26Hz(3.3s on, 0.5s off) – NEN 2575 Any T 24 T 35
T 9 1000 (1s on, 1s off)x7 + (7s on, 1s off) – IMO Code 1a Any T 34 T 1
T 10 1000 (1s on, 1s off)x7 + (7s on, 1s off) – IMO Code 1a Any T 34 T 1
T 11 420(0.5s on, 0.5s off)x3 + 1s gap – ISO 8201 Temporal Any T 1 T 8
T 12 1000(0.5s on, 0.5s off)x3 + 1s gap – ISO 8201 Temporal Any T 1 T 8
T 13 422/775 – (0.85 on, 0.5 off) x3 + 1s gap – NFPA Temporal Any T 1 T 8
T 14 1000/2000 @ 1Hz – Singapore Any T 3 T 35
T 15 300 Continuous Any T 24 T 35
T 16 440 Continuous Any T 24 T 35
T 17 470 Continuous Any T 24 T 35
T 18 500 Continuous – IMO code 2 (Low) Any T 24 T 35
T 19 554 Continuous Any T 24 T 35
T 20 660 Continuous Any T 24 T 35
T 21 800 Continuous – IMO code 2 (High) Any T 24 T 35
T 22 1200 Continuous Any T 24 T 35
T 23 2000 Continuous Any T 3 T 35
T 24 2400 Continuous Any T 20 T 35
T 25 440 @ 0.83Hz (0.60s on, 0.60s off) Intermittent Any T 44 T 8
T 26 470 @ 0.9Hz (0.55s on, 0.55s off) Intermittent Any T 44 T 8
T 27 470 @ 5Hz (0.10s on, 0.10s off) Intermittent Any T 44 T 8
T 28 544 @ 1.14Hz (0.43s on, 0.44s off) Intermittent Any T 24 T 8
T 29 655 @ 0.875Hz (0.57s on, 0.57s off) Intermittent Any T 44 T 8
T 30 660 @ 0.28Hz (1.80s on, 1.80s off) Intermittent Any T 24 T 8
T 31 660 @ 3.3Hz (0.15s on, 0.15s off) Intermittent Any T 24 T 8
T 32 745 @ 1Hz (0.50s on, 0.50s off) Intermittent Any T 24 T 8
T 33 800 (0.25s on, 1.00s off) Intermittent Any T 24 T 8
T 34 800 @ 2Hz (0.25s on, 0.25s off) – IMO code 3.a (High) Any T 24 T 8
T 35 1000 @ 1Hz (0.50s on, 0.50s off) Intermittent Any T 24 T 8
T 36 2400 @ 1Hz (0.50s on, 0.50s off) Intermittent Any T 24 T 8
T 37 2900 @ 5Hz (0.10s on, 0.10s off) Intermittent Any T 24 T 8
T 38 363/518 @ 1Hz (0.50s / 0.50s) Alternating Any T 8 T 19
T 39 450/500 @ 2Hz (0.25s / 0.25s) Alternating Any T 8 T 19
T 40 554/440 @ 1Hz (0.50s / 0.50s) Alternating Any T 24 T 19
T 41 554/440 @ 0.65Hz (0.76s / 0.76s) Alternating Any T 8 T 19
T 42 561/760 @ 0.83Hz (0.60s / 0.60s) Alternating Any T 8 T 19
T 43 780/600 @ 0.96Hz (0.52s / 0.52s) Alternating Any T 8 T 19
T 44 800/1000 @ 2Hz (0.25s / 0.25s) Alternating Any T 24 T 19
T 45 970/800 @ 2Hz (0.25s / 0.25s) Alternating Any T 8 T 19
T 46 800/1000 @ 0.875Hz (0.57s / 0.57s) Alternating Any T 24 T 19
T 47 2400/2900 @ 2Hz (0.25s / 0.25s) Alternating Any T 24 T 19
T 48 500/1200 @ 0.3Hz (1.67s / 1.67s) Sweeping Any T 24 T 12
T 49 560/1055 @ 0.18Hz (2.73s / 2.73s) Sweeping Any T 24 T 12
T 50 560/1055 @ 3.3Hz (0.15s / 0.15s) Sweeping Any T 24 T 12
T 51 600/1250 @ 0.125Hz (4s / 4s) Sweeping Any T 24 T 12
T 52 660/1200 @ 1Hz (0.50s / 0.50s) Sweeping Any T 24 T 12
T 53 800/1000 @ 1Hz (0.50s / 0.50s) Sweeping Any T 24 T 12
T 54 800/1000 @ 7Hz (0.07s / 0.07s) Sweeping Any T 24 T 12
T 55 800/1000 @ 50Hz (0.01s / 0.01s) Sweeping Any T 24 T 12
T 56 2400/2900 @ 7Hz (0.07s / 0.07s) Sweeping Any T 24 T 12
T 57 2400/2900 @ 1Hz (0.50s / 0.50s) Sweeping Any T 24 T 12
T 58 2400/2900 @ 50Hz (0.01s / 0.01s) Sweeping Any T 24 T 12
T 59 2500/3000 @ 2Hz (0.25s / 0.25s) Sweeping Any T 24 T 12
T 60 2500/3000 @ 7.7Hz (0.65s / 0.65s) Sweeping Any T 24 T 12
T 61 800Hz Motor Siren Any T 24 T 12
T 62 1200Hz Motor Siren Any T 24 T 12
T 63 2400Hz Motor Siren Any T 24 T 12
T 64 Simulated Bell Any T 21 T 12
For Stage 2 any Stage 1 alarm tone sound can be selected.
Country specific or custom tone configurations and alarm frequencies are available upon request.

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