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Hella Backup and warning alarm BM30

Sound for greater safety: Signal horns are required in vehicles by law so that other road users can be made aware of dangerous situations in a clearly audible manner.

The MotoVox Compact horns for mining are available with 107 dB, 112 dB and 117 dB. All three variants are electronic horns with a very long service lifetime. Moreover, they meet or exceed all applicable SAE specifications and are primarily used by major OEMs.

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Specifications

Operating voltage 12 – 24 V
Connection open cable end
Sound pressure level at 1.2 m distance 107 dB, 112 dB or 117 dB
Type approval 107 dB: SAE J1105 Sept 89, Type 1
112 dB: SAE J1105 Sept 89, Type K. U.L.
117 dB: SAE J1105 Sept 89, Type J for 24 V systems
SAE J1105 Sept 89, Type K for 12 V systems
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“Ears open” when it counts: The HELLA BM10 and BM30 backup and warning alarms provide additional safety in dangerous working and traffic situations with a piercing, widely perceptible alarm tone. The alarm sound is generated when the reverse gear is engaged and warns both nearby people and other road users of the vehicle backing up. Backup alarms are mandatory in many countries for vehicles with an obstructed view to the rear.

 

The volume differs depending on the application: For example, warning systems with a volume of approx. 90 dB are often used in road traffic, and with approx. 100 dB on construction sites with high ambient noise. The HELLA BM10 backup alarm is particularly suitable for light commercial vehicles, and the BM30 backup alarm for heavy commercial vehicles. The BM30 can automatically adjust the warning tone to ambient noise.

Both HELLA backup alarms have housing of fibreglass-reinforced nylon and insulated electronics with epoxy resin. This makes them rustproof and particularly protected from moisture and vibrations.

BM30

Variant Sound pressure level at 1.2 m Part number
150 mm cable 97 dB(A) 3SL-996139-217
150 mm cable 107 dB(A) 3SL-996139-227
150 mm cable 112 dB(A) 3SL-996139-237
140 mm cable with DEUTSCH connector 107 dB(A) 3SL-996139-247
140 mm cable with DEUTSCH connector 112 dB(A) 3SL-996139-257
140 mm cable with DEUTSCH connector 87 - 112 dB(A) 3SL-996139-277

 

Additional information

Variant

150 mm cable, 140 mm cable with DEUTSCH connector
Sound pressure level at 1.2 m

97 dB(A), 107 dB(A), 112 dB(A), 87 – 112 dB(A)

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