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120/330K - 100W

Vehicles used in the construction, maintenance, inspection of tracks, structures or in the gravel plant etc., are subject to special technical requirements and must be able to withstand extreme conditions. A ZETFON can also be used in these areas. The ZETFON is an electrically operated audible warning system which is used to produce loud signals for rail transport purposes. The ZETFON consists of the speaker (folded horn) and the control and amplifier unit.

Because every detail matters

Technical data

  • ZETFON 120/330K - 100W
  • Customized requirement
  • 330 Hz +/- 15Hz
  • 122 - 124 dB(A) / 121 - 123 dB(C)
  • 117 - 119 dB(A) / 116 - 118 dB(C)
  • 24 V DC (16.8 to 30 V DC)
  • approx. 120 W
  • approx. 6 kg


Optional modifications for this product

Sound pressure level

The sound pressure level of our Makrofons can be reduced according to your requirements.


Colour selection

You can select between various RAL tones and colour requirements for the funnels of our Makrofons.