Bell 719S | Switching Unit 719S

£126.41 £105.34
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Bell 719S | Switching Unit 719S

Bell 719S | Switching Unit 719S

This switching unit provides a means of operating a door entry telephone system from two entrances. Several 719s unit may be combined to extend operation up to a maximum of eight entrances.


  • When a telephone is called from a given entrance, the switching unit connects the telephone to the speech unit of that panel only, for a fixed period.
  • Pressing the 'lock releas' button on the telephone operates the lock release at the calling door only.
  • Please refer to the technical manual for the appropriate power supply requirements and other features.

Technical Specifications:

  • Supply Voltage: 11.5V - 15V RMS 50Hz AC or 11.5V - 15V DC
  • Current Consumption: 590mA maximum AC or 290mA maximum DC
  • Fail secure Lock output: Same voltage as AC/DC supply, AC if both present 500Ma maximum
  • Lock release duration: 3, 5, 10 or 20 seconds
  • Active time: 30, 60, 90 or 120 seconds
  • Exit input: Normally open contact (must be voltage free)
  • Number of Doors: 2 per unit, maximum 0f 8 doors per system


  • H 240 x W 190 x D 50 mm

More Information
Brand Bell
Product Type Relay (system specific)
Entrance Relays 2 entrance switching relay
System Type Audio
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Bell (BSTL) 719S Wiring Diagrams pdf(0.19MB)
Bell 719s Manual pdf(2.09MB)
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