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2024-08-30
Electromechanical horn S92
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. With its full sound, the HELLA S92 horn is particularly suitable for commercial vehicles. It generates maximum attention with its high sound pressure level.
The S92 horn is operated by the battery current or a control current coming from the steering wheel. This is passed through a relay to generate a voltage dip-free control current. The control current activates the electromagnet of the signal horn. This in turn attracts a metal core or armature, and above it, the steel diaphragm of the horn. The sound is produced by interrupting the power supply when the diaphragm is tightened and the armature and diaphragm return to the original position.
The HELLA S92 horn is available with a low (335 Hz) and a high (436 Hz) tone, each as a 12 V or 24 V variant, and produces a sound pressure level of approx. 112 dB(A) at 2 m distance.
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. With its full sound, the HELLA S92 horn is particularly suitable for commercial vehicles. It generates maximum attention with its high sound pressure level.
The S92 horn is operated by the battery current or a control current coming from the steering wheel. This is passed through a relay to generate a voltage dip-free control current. The control current activates the electromagnet of the signal horn. This in turn attracts a metal core or armature, and above it, the steel diaphragm of the horn. The sound is produced by interrupting the power supply when the diaphragm is tightened and the armature and diaphragm return to the original position.
The HELLA S92 horn is available with a low (335 Hz) and a high (436 Hz) tone, each as a 12 V or 24 V variant, and produces a sound pressure level of approx. 112 dB(A) at 2 m distance.
The electromechanical horn S92.
Technical drawing of the electromechanical horn S92.
Technical Data
| Diameter | 92 mm |
| Rated voltage |
12V / 24V |
| Sound pressure level at 2 m distance | 112 dB (A) ± 5 dB (A) |
| Frequency range |
335 Hz (low tone) 435 Hz (high tone) |
| Power consumption |
60 W (12 V) 72 W (24 V) |
| Current consumption |
5.0 A max. (12 V) 3.0 A max. (24 V) |
| Operating temperature | -40 °C to +85 °C |
| Protection class |
IP 54 |
| Lifetime | 100,000 cycles |
| Housing material |
Metal |
| Type approval |
ECE-R28 |
Program Overview
| Variant | Part number | Packaging unit |
|---|---|---|
| 24 V, 335 Hz, low tone | 3AL 012 588-097 | 48 |
| 24 V, 435 Hz, high tone | 3AL 012 588-087 | 48 |
| 12 V, 435 Hz, high tone | 3AL 012 588-117 | 48 |