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B300SND Signalling Horn 2-21-140

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The B300SND is a compact signalling horn suitable for mounting on machinery or in general signalling applications. The B300SND reproduces the alert sound of traditional electro-mechanical equivalents but without any of the reliability issues.
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Signalling Horn


In addition to the ‘buzzer’ type sound the unit features a further two alarm sounds. The B300SND is a component of the Spectra range and can be configured with the B350 or B450 traffic light beacons for complete audio-visual signalling.


Datasheet Datasheet.pdf
Installation Manual D119-00-001-IS_Issue_1__B300SND_.pdf
Russian EAC Declaration of Conformity D-GB.GA05.B.12595-20-24.03.2025.pdf
Russian Maritime register 19.00195.278.pdf
Declaration of Conformity DC-026_Issue_G_Spectra.pdf
2D drawing (PDF) SK0069_Issue_B.pdf
2D drawing (DWG) SK0069_Issue_B.dwg
Hi-res product image 1 (TIFF) 2-21-140_B300SND.tif
Hi-res product image 2 (TIFF) 2-21-140_B300SND_ASSY.tif
Lo-res product image 1 (JPG) 2-21-140_B300SND.jpg
Lo-res product image 2 (JPG) 2-21-140_B300SND_ASSY.jpg


  • Bayonet fixing body.
  • Anti-tamper locking screw.
  • Stainless steel fixings.
  • Compatible with B350 and B450 traffic light series


No. of tones: 3
Output: 98 dB(A) @ 1m [89dB(A) @ 10ft/3m]
Mounting: Surface mount
(wall bracket available)
Entries: 1 × 5-7mm push through grommet
1 x M20 cable entry
Dimensions: ø100 x 103mm
Ingress protection: IP65
Housing material: High impact UL94 V0 (f1) PC
Terminals: 0.5 to 1.5mm²
Operating temp: -25 to +50°C [-13° to +122°F]
|Storage temp:
-40 to +70°C [-40° to +158°F]
Relative humidity: 90% at 20°C [68°F]
*SPL data +/-3dB(A). Measured at optimum voltage.

Current Consumption

Version: Voltage: Current:
12-30V dc/ac 12V dc 10mA
12-30V dc/ac 24V dc 24mA
40-260V dc/ac 48V dc 15mA
12-30V dc/ac 12V ac 50/60Hz 30mA
12-30V dc/ac 24V ac 50Hz 62mA
40-260V dc/ac 48V ac 50/60Hz 25mA
40-260V dc/ac 115V dc 6mA
40-260V dc/ac 230V dc 3mA
40-260V dc/ac 115V ac 50/60Hz 19mA
40-260V dc/ac 230V ac 50/60Hz 10mA

Part Codes

Version: Part code:
12-30V ac/dc B300SND030G
40-260V ac/dc B300SND230G
Mounting brackets: Description:
MB-B350T-S Mounting bracket kit for a single
B300SND/B350 type unit.
MB-B350T-M Mounting bracket kit for linked
multiple B300SND/B350 units.

Tone Table

Stage 1 WAV file Frequency Description.
T 1 /system/1/assets/files/000/000/392/392/68d5d1294/original/TF029.WAV 800/1000Hz @ 7Hz Sweeping
T 2 /system/1/assets/files/000/000/418/418/664b0e444/original/TF051.WAV Simulated buzzer sound
T 3 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV 1200/500Hz @ 1Hz – DIN / PFEER P.T.A.P.
Country specific or custom tone configurations and alarm frequencies are available upon request.

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