[GreenKeys] What is a polar relay?

[steve bennett]

 Jeff,
  I think I get the picture now.Normally neither contact is closed.Positive voltage connects common to one throw and negative connects common to the other?Is that it?
-Steve AD8CI
    On Saturday, April 3, 2021, 07:13:18 PM EDT, Jeffrey Angus <jdangus at att.net> wrote:  
 
 On 4/3/21 5:45 PM, steve bennett via GreenKeys wrote:
> Thanks. So is it SPDT that goes one way or the other by polarity
> or or is it a pair of SPST relays that trip one or the other by polarity?
> I think I need to see a schematic. lol
>
> -Steve
It is a SPDT center off relay. With two coils.
One coil pulls it one way, the other coil pulls it the other way.


-- 
"I am a river to my people."
Jeff-1.0
WA6FWI
www.foxsmercantile.com

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