FHF AW 1-4 Signalling Bell

Electronic signalling device for dry and damp rooms.

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Overview

The signalling bells are mainly used for clear calling, reporting and warning purposes when it is wanted that a high-pitch bell sound stand out clearly against ambient noise. Different dome sizes enable optimum signalling.

Design
The driver system of the multi-stroke signalling bell consists of a single-coil electromagnet. A diode in the circuit of the AC variant only allows current to flow every half period, with the result that the striker oscillates in time with the mains frequency. The DC versions are equipped with a non-wearing electronic contact breaker. Their stroke rate is approx. 50 strokes/sec.

  • Multi-stroke and single-stroke signalling bell
  • Slow-stroke signalling bell with adjustable stroke rate between 200/min. and 30/min
  • Various flat domes
General
Area classificationWeatherproof
Operating temperature-20°C to +60°C
Ingress protectionIP55
MaterialBody: aluminium. Dome: steel
Entries1 x M20
Weight1.45kg – 2.95kg
Voltage6-220Vdc, 12-240Vac
Sound outputMax: 110dB, 1m (±3dB)
OptionsDome size, strike rate

FHF AW 1-4 Signalling Bell Datasheet