AB121LDA Alarm Sounder & LED Beacon

  • Automatic synchronisation on multi-sounder system.
  • Continuously rated.
  • Stainless steel fixings.
  • Unit can be mounted using external lugs or internal BESA compatible fixing positions.
  • Duplicate cable terminations (in & out for daisy-chain installations).
  • Tropicalisation available on request.
  • Available with custom tone configurations and frequencies.
  • ‘Programmable’ version available:
    - 45 alarm tones
    - 4 remotely selectable stages
    - Any tone can be assigned to any stage
    - User configurable continuous frequency tone

Approvals

  • Alarm sounder (A121): VdS approved to EN54-3 (CPD 89/106/EEC).
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AB121LDA Alarm Sounder & LED Beacon
Eac-logo Vds-approval Ce-approval
2-31-270

AB121LDA Alarm Sounder & LED Beacon

The AB121LDA combines a heavy duty 126dB(A) alarm sounder with a powerful multi-function L.E.D beacon.

The beacon and sounder can be operated from the same power source or controlled individually.

Specification

Sounder:
Maximum output: 126dB(A) @ 1 metre [117dB(A) @ 10ft/3m]
Nominal output: 121dB(A) @ 1m +/- 3dB - Tone 2 [112dB(A) @ 10ft/3m]
No. of tones: 45 (UKOOA / PFEER compliant)
No. of stages: 3
Volume control: Max. 121dB(A); Min.112dB(A) - Tone 2
Effective range: 300m/984ft @ 1KHz
Beacon:
Light source: Array of 32 multi-function high power L.E.D’s
Operating modes: 4 rotating configurations
4 flashing configurations
Steady mode for indicator / status applications
Peak/Effective Intensity cd: 30 cd* - measured ref. to I.E.S.
No. of stages: DC unit also features a remotely selectable
2nd and 3rd stage flash pattern.
L.E.D /lens colours: Amber, Blue, Clear (white L.E.D.s),
Green, Red & Yellow
General:
Voltages DC: 24V dc (10-30V dc); 48V dc (35-60V dc)
Voltages AC: 115V ac; 230V ac
Ingress protection: IP65
Housing material: High impact UL94 V0 & 5VA FR ABS
Lens material: UV stable PC UL94 V0 FR
Bayonet lensfixing ,
Anti-tamper locking screw.
Colour: Red (RAL3000) & Grey (RAL7038)
Cable entries: 2 x M20 clearance gland entries in side & back
Terminals: 0.5 to 4.0mm² cables.
Operating temp: -25 to +55°C [-13° to +131°F]
Storage temp: -40 to +70°C [-40° to +158°F]
Relative humidity: 90% at 20°C [68°F]
Weight: DC: 2.10kg/4.62Ibs AC:2.70kg/5.94Ibs
*Candela measurements representative of performance with amber lens at optimum voltage.
*SPL data +/-3dB(A). Measured at optimum voltage.

Part Codes

Version: Part code:
24V dc AB121LDADC24[x]/[y]
48V dc AB121LDADC48[x]/[y]
115V ac AB121LDAAC115[x]/[y]
230V ac AB121LDAAC230[x]/[y]
[x] = Housing: G: Grey, R: Red
[y] = Lens: A: Amber, B: Blue, C: Clear
G: Green, R: Red, Y: Yellow
Suffix part number with ‘-P’ for programmable, 4 stage, 45 tone version.

Alarm sounder

Version: Voltage: Current:
24V dc 10-30V dc 950mA*
48V dc 35-60V dc 600mA*
115V ac 50/60Hz +/-10% 240mA
230V ac 50/60Hz +/-10% 120mA
* current at nominal voltage on Tone 2

Beacon modes

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

L.E.D. Beacon

Version: Voltage: Current:
24V dc 10-50V dc 400mA*
48V dc 10-50V dc 400mA*
115V ac 50/60Hz +/-10% 140mA
230V ac 50/60Hz +/-10% 70mA
* current at 24V dc

Tone Table

Stage 1 Frequency Description Stage 2 Stage 3
Tone 1 340 Hz Continuous Tone 2 Tone 5
Tone 2 800/1000Hz @ 0.25 sec Alternating - BS5839 Alarm tone Tone 17 Tone 5
Tone 3 500/1200Hz @ 0.3Hz 0.5 sec Slow Whoop - NEN 2575:2000 Tone 2 Tone 5
Tone 4 800/1000Hz @ 1Hz Sweeping Tone 6 Tone 5
Tone 5 2400Hz Continuous Tone 3 Tone 20
one 6 2400/2900Hz @ 7Hz Sweeping Tone 7 Tone 5
Tone 7 2400/2900Hz @ 1Hz Sweeping Tone 10 Tone 5
Tone 8 500/1200/500Hz @ 0.3Hz Sweeping Tone 2 Tone 5
Tone 9 1200/500Hz @ 1Hz - DIN / PFEER P.T.A.P. Tone 15 Tone 2
Tone 10 2400/2900Hz @ 2Hz Alternating Tone 7 Tone 5
Tone 11 1000Hz @ 1Hz Intermittent Tone 2 Tone 5
Tone 12 800/1000Hz @ 0.875Hz Alternating Tone 4 Tone 5
Tone 13 2400Hz @ 1Hz Intermittent Tone 15 Tone 5
Tone 14 800Hz 0.25sec on, 1 sec off Intermittent Tone 4 Tone 5
Tone 15 800Hz Continuous Tone 2 Tone 5
Tone 16 660Hz 150mS on, 150mS off Intermittent Tone 18 Tone 5
Tone 17 544Hz (100mS)/440Hz (400mS) - AFNOR NF S 32-001 Tone 2 Tone 27
Tone 18 660Hz 1.8sec on, 1.8sec off Intermittent Tone 2 Tone 5
Tone 19 1.4KHz-1.6KHz 1s, 1.6KHz-1.4KHz 0.5s - AFNOR NFC48-265 Tone 2 Tone 5
Tone 20 660Hz Continuous Tone 2 Tone 5
Tone 21 554Hz/440Hz @ 1Hz Alternating Tone 2 Tone 5
Tone 22 544Hz @ 0.875 sec. Intermittent Tone 2 Tone 5
Tone 23 800Hz @ 2Hz Intermittent Tone 6 Tone 5
Tone 24 800/1000Hz @ 50Hz Sweeping Tone 29 Tone 5
Tone 25 2400/2900Hz @ 50Hz Sweeping Tone 29 Tone 5
Tone 26 Bell Tone 2 Tone 15
Tone 27 554Hz Continuous Tone 26 Tone 5
Tone 28 440Hz Continuous Tone 2 Tone 5
Tone 29 800/1000Hz @ 7Hz Sweeping Tone 7 Tone 5
Tone 30 300Hz Continuous Tone 2 Tone 5
Tone 31 660/1200Hz @ 1Hz Sweeping Tone 26 Tone 5
Tone 32 Two tone chime. Tone 26 Tone 15
Tone 33 745Hz @ 1Hz Intermittent Tone 2 Tone 5
Tone 34 1000 & 2000Hz @ 0.5 sec Alternating - Singapore Tone 38 Tone 45
Tone 35 420Hz @ 0.625 sec Australian Alert - AS2220 Tone 36 Tone 5
Tone 36 500-1200Hz 3.75sec /0.25sec. Australian Evac. - AS2220 Tone 35 Tone 5
Tone 37 1000Hz Continuous - PFEER Toxic Gas Tone 9 Tone 45
Tone 38 2000Hz Continuous Tone 34 Tone 45
Tone 39 800Hz 0.25sec on, 1 sec off Intermittent Tone 23 Tone 17
Tone 40 544Hz (100mS)/440Hz (400mS) - AFNOR NF S 32-001 Tone 31 Tone 27
Tone 41 Motor Siren - slow rise to 1200 Hz Tone 2 Tone 5
Tone 42 Motor Siren - slow rise to 800 Hz Tone 2 Tone 5
Tone 43 1200 Hz Continuous Tone 2 Tone 5
Tone 44 Motor Siren - slow rise to 2400 Hz Tone 2 Tone 5
Tone 45 1KHz 1s on, 1s off Intermittent - PFEER Gen. Alarm Tone 38 Tone 34
Country specific or custom tone configurations and alarm frequencies are available upon request.