Pyronix Deltabell E Grade 3 External Sounder Back Plate Blue

£32.10 +VAT


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Deltabell E (Grade 3)

Grade 3 External Sounder – Back Plate Only

  • Piezo sounder technology
  • 3 Way tamper action
  • Universal triggering inputs
  • Dual skin 3mm ABS housing
  • Supplied with rechargeable battery
  • Engineer hold off
  • Hinged lid available – see below
  • Remote engineer hold off input
  • IP65 rated
  • Various colour combinations available
  • Increased battery capacity
  • Siren trigger input is continuously monitored for integrity
  • Active self-test for SAB back up battery
  • Fault relay output

Product Features

Features Description
Piezo sounders with high decibel output Belle: 118dBa. Decibell E/ Deltabell E / Deltabell Plus: 104dBA. Invincibell E, Invinicbell Plus: 104dBA
Note: The Belle, Deltabell X and Invincibell X have 2 piezos.
The Decibell, Deltabell E/Plus and Invincibell E/Plus all have 1 piezo.
3 Way tamper action Activation from front, back, and power supply cut off ensures protection from sabotage attempts. In this situation, the siren will activate independently of the control panel.
Positive/Negative trigger inputs Can be connected to any output that is positive applied or negative applied on a manufacturer’s control panel.
Universal triggering inputs Can be connected to any output on a manufacturers control panel, positive applied, negative applied, positive removed, negative removed.
Revolving guide holes Unique levelling mechanism including in-built spirit level and revolving guide holes.
Supplied with battery Complete with a backup battery so that even in the event of an intruder sabotage, the bell box will still operate and protect the property.
Siren cut-off timer The cut off timer is defaulted to 15 minutes to meet industry regulations.
3mm Poly housing Enables a panoramic strobe effect illuminating the full bell box
Engineer hold off facility When first powered with the tamper switch open, the sounder will not activate.
Remote engineer hold off It is possible to disable the bell box tamper when a control panel is in the engineers menu.

Technical Specification



Operating voltage 9-16Vdc (13.5V nominal)

Standby < 50mA
Alarm < 250mA

Strobe duration 100mS

Output 109dBA

  For use in EN50131-1 Systems
Security Grade 3
Environmental Class 4

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Image for illustration purposes only, this product is no backlit

Additional information

Weight 1 kg


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