Powering a sounder

Discussion in 'Alarms, CCTV & Telephones' started by josh451, 17 Mar 2012.

  1. josh451

    Joined:
    26 Jul 2009
    Messages:
    199
    Thanks Received:
    24
    Location:
    Yorkshire
    Country:
    United Kingdom
    When a sounder is in alarm, is the current drawn from the bell + and- terminals, or the siren and strobe trigger wire?
     
  2. Boilerman2

    Joined:
    10 Jun 2009
    Messages:
    5,207
    Thanks Received:
    1,005
    Location:
    Suffolk
    Country:
    United Kingdom
    Depends if the sounder is SAB or SCB Self Activating Bell/Siren, the load is on the Trig terminal - with a SCB Self Contained Bell/Siren the Sounder is powered by the internal battery (which is much larger than the Ni-cad used in an SAB

    Most common Sounders are the SAB type ;)
     
  3. madman41

    Joined:
    22 Feb 2011
    Messages:
    449
    Thanks Received:
    21
    Location:
    Humberside
    Country:
    United Kingdom
    Self actuating bell actually, unless its mechanical :D
     
  4. Alarm

    Joined:
    18 Oct 2010
    Messages:
    8,970
    Thanks Received:
    529
    Location:
    London
    Country:
    United Kingdom
    The draw is from all the generation side and common constant pos.
    Hence one fuse, glass or electronic.
    And the loadings shown for quiescent and strobe and sounder in alarm.

    The battery in a sounder if SAB or SCB is no different. Open up any make and see the jumpers for the operation. Note the same battery.

    Your learning young one.(Madone :D)
     
  5. Europlex

    Joined:
    20 Nov 2007
    Messages:
    2,365
    Thanks Received:
    224
    Country:
    United Kingdom
    #
    Smarty pants ;)
     

Share This Page