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Siren question - 12V 1A enough?

Discussion in 'Security Alarms' started by DeanB, Mar 18, 2009.

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  1. DeanB

    DeanB Guest

    Hi all,

    I have a linear corp alarm and want to buy an outdoor siren alarm -
    the specs on the alarm are 12V and 1A maximum, which equates to 12W (I

    All the sirens online appear to be 20, 30 or 40W and people mention
    quite often they are not loud enough. Can I run a more powerful siren
    with a relay or something, or what siren would be best?

  2. mleuck

    mleuck Guest

    Which Linear system?
  3. alarman

    alarman Guest

    Those wattages refer to the speaker wattage. A 30 watt siren will use almost
    2 amps at 12.5 VDC.
  4. DeanB

    DeanB Guest

  5. Crash Gordon

    Crash Gordon Guest

    That thing would have a heart attack if you connected a big siren to it.

    **Crash Gordon**
  6. Jim Rojas

    Jim Rojas Guest

    Use a separate power supply and a relay to power the siren.

    Jim Rojas
  7. DeanB

    DeanB Guest

    Yes, that seems the way to go. I'm going to try the Amseco SSX-51
    which pulls only just over 1/2 amp, and if its no good then I will
    hook up a relay. It has good reviews so we'll see.
  8. Crash Gordon

    Crash Gordon Guest

    You can use a spkr or a siren.

    The siren output is rated at 1 amp @ 12v
    It also has wet & dry relay outputs.

    **Crash Gordon**
  9. DeanB

    DeanB Guest

    I'm going to use the speaker terminals for the voice output and
    beeping (and I guess also the alarm sound) so that I can hear it more
    easily from the entrance. The main unit is out of sight. If I am
    right, I think it has a siren output as well.
  10. Crash Gordon

    Crash Gordon Guest

    has both.
    I'd use the speaker...less draw on the puny battery.

    **Crash Gordon**
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