B400SND Signalling Horn

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


B400SND Signalling Horn
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B400SND Signalling Horn

The B400SND is a 110 dB(A) high output signalling horn suitable for a variety of general signalling applications. The B400SND reproduces the alert sound of traditional electro-mechanical equivalents but without any of the reliability issues. In addition to the 'buzzer' type sound the unit features a further two alarm sounds. All first stage sounds have a remotely selectable second stage.

The B400SND is a component of the Spectra range and can be configured with the B350 or B450 traffic light beacons for complete audio-visual signalling.


No. of tones: 3
Output: 110 dB(A) @ 1m [101dB(A) @ 10ft/3m]
Stages: Remotely selectable second stage
Mounting: Surface mount
(wall bracket available)
Entries: 1 x 5-7mm push through grommet
2 x M20 cable entry
Dimensions: ø140 x 120mm
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:
10-30V dc/ac 12V dc 52mA
10-30V dc/ac 24V dc 105mA
40-260V dc/ac 48V dc 42mA
10-30V dc/ac 12V ac 50/60Hz 115mA
10-30V dc/ac 24V ac 50Hz 215mA
40-260V dc/ac 48V ac 50/60Hz 68mA
40-260V dc/ac 115V dc 16mA
40-260V dc/ac 230V dc 8mA
40-260V dc/ac 115V ac 50/60Hz 36mA
40-260V dc/ac 230V ac 50/60Hz 18mA

Part Codes

Version: Part code:
10-30V ac/dc B400SND030G
40-260V ac/dc B400SND230G
Mounting brackets:
MB-B450T-S Mounting bracket kit for a single
B400SND/B450 type unit.
MB-B450T-M Mounting bracket kit for linked
multiple B400SND/B450 units.

Tone Table

Stage 1 WAV file Frequency Description. Stg 2
T 1 /system/1/assets/files/000/000/424/424/33c1c60f3/original/TF052.WAV Electro-mechanical diaphragm horn sound T 2
T 2 /system/1/assets/files/000/000/386/386/ceb4e488c/original/TF009.WAV 1200/500Hz @ 1Hz - DIN / PFEER P.T.A.P. T 1
T 3 /system/1/assets/files/000/000/392/392/68d5d1294/original/TF029.WAV 800/1000Hz @ 7Hz Sweeping T 2
Country specific or custom tone configurations and alarm frequencies are available upon request.