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Re: Siren question - 12V 1A enough?

Subject: Re: Siren question - 12V 1A enough?
From: "alarman" <nospam@xxxxxxxx>
Date: Tue, 17 Mar 2009 17:51:38 -0700
Newsgroups: alt.security.alarms
References: <7da7bfdc-922d-4fd4-a06c-a1cca8ff9843@xxxxxxxxxxxxxxxxxxxxxxxxxxxx>

DeanB wrote:
> 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
> think).
>
> 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?
>
> Thanks!

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

--
js

Democracy is two wolves and a sheep deciding what to eat for lunch.
Liberty is a well-armed sheep contesting the vote.

References:
- Siren question - 12V 1A enough?
  - From: DeanB

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