7042-AM80SX Genuine Fiamm 12V Low-Tone Electromagnetic Horn

The 7042-AM80SX low-tone electromagnetic horn is manufactured to Fiamm factory specifications for producing an audible vehicle warning signal.

• Closing the horn switch sends electrical current through the internal electromagnetic coil to begin horn operation.
• The energized coil creates a magnetic field that pulls the metal diaphragm toward the electromagnet.
• Diaphragm movement opens the internal contact circuit and temporarily interrupts current flow through the coil.
• Releasing the magnetic force allows the diaphragm to return and close the electrical contacts again.
• This automatic make-and-break process repeats rapidly to maintain continuous diaphragm vibration while the horn is activated.
• Vibrations from the metal diaphragm create the horn’s low-tone sound through repeated pressure waves.