FHF signalling bells are designed to warn, call and signal in areas with explosive atmospheres in group II (for Ex products) and rough ambient conditions. The protection type for Ex certified bells is II2 G Ex de IIC T6 which allows the signalling bell to be used without restriction in all ex-areas classified 1 and 2.

AW1-AW6 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. diffrent dome sizes enable optimum signalling.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.

UWE bells are extremely low current consumption , the application possibilities for UWE signalling bells are growing all the time. for example they are already used in many systems s fire alarm. The electronic bell system is mounted in a plastic housing in IP 40. The dome is made of steel and coated red. The bell is designed for continuous operation and is activated by switching on the power supply.

Please see below "ORDERING INFORMATION" for product diffrent options and relevant part numbers.