Powering a sounder

josh451 · Posted: Sat Mar 17, 2012 5:58 pm

When a sounder is in alarm, is the current drawn from the bell + and- terminals, or the siren and strobe trigger wire?

Boilerman2 · Posted: Sat Mar 17, 2012 8:19 pm

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

madman41 · Posted: Mon Mar 19, 2012 10:19 pm

Boilerman2 wrote:

Depends if the sounder is SAB or SCB Self Activating Bell/Siren,

Self actuating bell actually, unless its mechanical

Alarm · Posted: Mon Mar 19, 2012 10:32 pm

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

)

Europlex · Posted: Tue Mar 20, 2012 6:38 am

madman41 wrote:

Boilerman2 wrote:

Depends if the sounder is SAB or SCB Self Activating Bell/Siren,

Self actuating bell actually, unless its mechanical

#
Smarty pants