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2024-08-27
Electromechanical horn B36
Sound for greater safety: Signal horns are required in vehicles by law, in order to be able to draw the attention of other road users to dangerous situations in a clearly audible manner. The HELLA Full Tone Horn B36 with its full sound is particularly suitable for commercial vehicles. It generates maximum attention even over long distances.
The B36 horn is operated by the battery current or a control current coming from the steering wheel. A relay prevents voltage dips. The control current activates the electromagnet. This attracts the metal core or armature and, above it, the steel diaphragm of the horn. When the diaphragm is tightened, the power supply is interrupted and the armature and diaphragm return to the original position, and the process starts again. This creates a vibration, which becomes audible as a signal.
The HELLA B36 horn is available with a low (335 Hz) and a high (400 Hz) tone for different nominal voltages from 12 V to 80 V and produces a sound pressure level of approx. 115 dB(A) at 2 m distance. The combination of a set of high and low tone creates an optimal tone.
Sound for greater safety: Signal horns are required in vehicles by law, in order to be able to draw the attention of other road users to dangerous situations in a clearly audible manner. The HELLA Full Tone Horn B36 with its full sound is particularly suitable for commercial vehicles. It generates maximum attention even over long distances.
The B36 horn is operated by the battery current or a control current coming from the steering wheel. A relay prevents voltage dips. The control current activates the electromagnet. This attracts the metal core or armature and, above it, the steel diaphragm of the horn. When the diaphragm is tightened, the power supply is interrupted and the armature and diaphragm return to the original position, and the process starts again. This creates a vibration, which becomes audible as a signal.
The HELLA B36 horn is available with a low (335 Hz) and a high (400 Hz) tone for different nominal voltages from 12 V to 80 V and produces a sound pressure level of approx. 115 dB(A) at 2 m distance. The combination of a set of high and low tone creates an optimal tone.
The electromechanical horn B36.
Technical drawing of the electromechanical horn B36 with a diameter of 97 cm.
Technical drawing of the electromechanical horn B36 with a diameter of 97 cm.
Technical Data
| Diameter | 97 mm / 113 mm |
| Rated voltage | 12 V / 24 V / 48 V / 80 V |
| Sound pressure level at 2 m distance | 115 dB (A) ± 3 dB (A) |
| Frequency range |
335 Hz (low tone) 400 Hz (high tone) |
| Power consumption |
66 W (12 V) 84 W (24 V) 62 W (48 V) 40 W (80 V) |
| Current consumption |
Max. 6.0 A (12 V) Max. 3.5 A (24 V) Max. 1.3 A (48 V) Max. 0.5 A (80 V) |
| Operating temperature | -40 °C to +85 °C |
| Protection class | IP 6K7 and IP X5 |
| Lifetime | 100,000 cycles (ECE-R28) |
| Housing material | Metal |
| Type approval |
ECE-R28 (applies for 12 V and 24 V horns) |
Program Overview
| Variant | Diameter | Part number | Packaging unit |
|---|---|---|---|
| 24 V, 335 Hz, low tone, flat connector | 113 mm | 3BA 002 768-382 | 1 |
| 24 V, 400 Hz, high tone, flat connector | 113 mm | 3BA 002 768-431 | 1 |
| 24 V, 335 Hz, low tone, DEUTSCH connector | 113 mm | 3BA 922 200-827 | 24 |
| 48 V, 335 Hz, low tone, flat connector | 113 mm | 3BA 002 768-777 | 24 |
| 80 V, 335 Hz, low tone, flat connector | 113 mm | 3BA 002 768-007 | 24 |