FHF Signalling bell AW 4 24 VDC 250 FS 21162413

FHF Signalling bell AW 4 24 VDC 250 FS NEW

NEW Item
Manufacturer Part Number: 21162413

Signalling Bell
Corrosion-resistant signalling device for indoor and outdoor use

• Multi-stroke and single-stroke signalling bell
• Slow-stroke signalling bell with adjustable stroke rate between 200/min. and 30/min.
• Various flat domes

The signalling bells are used for clear calling, reporting and warning purposes as a high-pitched bell sound stands out clearly against ambient noise. Different dome sizes enable ideal signalling. The drive system of the multi-stroke signalling bell consists of a single-coil electromagnet. In the AC variant a diode in the circuit enables a current flow in half period, so that the striker oscillates in time with the supply frequency. The DC types are equipped with a non-wearing electronic contact breaker. The stroke rate is approx. 50 strokes/sec.

Specifications

• Housing Corrosion-resistant aluminium die cast with pebble grey varnish (RAL 7001)
• Bell dome Steel flat dome, pebble grey (RAL 7001) 150 mm and 250 mm (steel flat dome 105 mm on request)
• Ingress protection IP 55 according to EN 60529
• Protection class I
• Cable gland 1 x M20, for line diameters of 6-11 mm with integrated pressure balance function
• Connection terminals Terminal capacity:
  • 2.5 mm² fine-wire
  • 4.0 mm² single-wire
• Volume Approx. 100 to 110 dB(A), depending on dome size (in 1 m distance)
• Operating mode
  • Continuous operation for AW 1 and AW 2
  • Short-time operation 5 min for AW 3 and AW 4
• Operating conditions Indoors and outdoors
• Operating position Striker facing downward
• Temperature range
• Operation -20 °C to +60 °C
• Storage -30 °C to +70 °C
• Weight
  • Approx. 1.45 kg with flat dome 150 mm
  • Approx. 2.95 kg with flat dome 250 mm

The AW 1 multi-stroke AC versions work with half-wave DC current. The contact-breaker system in the AW 2 DC versions produces an intermittent direct current. Thus, when planning the supply lines and fuses, it should be considered that the given values are mean current values and the peaks are higher. The correct polarity of the connection line must be observed.

The Single-stroke Bells AW 3 and AW 4 are each equipped with an electromagnet system that drives the striker against the bell dome only once per current-on transition. The maximum permissible duty cycle is 5 min.

Note on availability:
Many products are custom made by FHF due to their complexity.
The delivery time can vary. We try to provide the fastest and smoothest transaction for our customers.
The showed delivery time is only a rough estimation. Thank you very much for your understanding!