12Volt Polarised Relay ?

[joe2]

Hi all,

 

I have a sound bomb and what I am trying to do is when the relay is powered on I want it to silence the sounder, I have tried but just cant get it to do it, Any ideas

 

Thanks for your help

[Lwillis]

Switch the positive feed into the sound bomb via the common and normally open

Negotiate straight from the supply .

[james.wilson]

Just run the power (either leg) through the common and normally closed connections of said relay

[Lwillis]

Oh silence the sounder ?

So it rings all the time ? And goes off when the relay in powered ?

Use common and normally closed for positive

Beat me to it James lol

[james.wilson]

i was thinking N/O and N/C from different people is bound to confuse the op lol

[Lwillis]

Lol

Yeah

Can't think of a reason for it having it in all the time tho . Or dropping the power to the relay to make it sound

Unless I've misread his post or

[james.wilson]

Annoying neighbors and a switch lol

[joe2]

for the help guys done it