# Relay with minimum voltage threshold

**URL:** <https://forum.digikey.com/t/relay-with-minimum-voltage-threshold/37869>\
**Category:** Relays\
**Created:** [January 11, 2024, 12:01am UTC](https://forum.digikey.com/t/relay-with-minimum-voltage-threshold/37869 "2024-01-11T00:01:39Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![spiralforminginc](https://avatars.discourse-cdn.com/v4/letter/s/f9ae1b/32.png) [@spiralforminginc](https://forum.digikey.com/u/spiralforminginc)\
**Post date:** [January 11, 2024, 12:01am UTC](https://forum.digikey.com/t/relay-with-minimum-voltage-threshold/37869/1 "2024-01-11T00:01:39Z")

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Looking for a relay for an alarm that will not close until specific voltage is reached for a specified time. This is intended to discern and discriminate low voltage (brown out) and intermittent service.  
Application will be for alarm on power service, sounding when service is back in normal service.

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**Author:** ![Nathan\_2268](https://sea2.discourse-cdn.com/digikey/user_avatar/forum.digikey.com/nathan_2268/32/1883_2.png) [@Nathan\_2268](https://forum.digikey.com/u/Nathan_2268)\
**Post date:** [January 11, 2024, 12:16am UTC](https://forum.digikey.com/t/relay-with-minimum-voltage-threshold/37869/2 "2024-01-11T00:16:17Z")

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@spiralforminginc

The below link shows some options that match your overall description.  
[Time Delay Relays | Electronic Components Distributor DigiKey](https://www.digikey.com/en/products/filter/time-delay-relays/952?s=N4IgjCBcpmAMVQGMoDMCGAbAzgUwDQgD2UA2iAMwAcYAnLQKwiEUO0DsD7zlNAbAz48KtOGAAsQlm05CAuoQAOAFyggAysoBOASwB2AcxABfQmAoJoIFJAw4CxMiHFw%2BfONwUgVazbsMmZrRUtIjWaFh4hCSQ5AhypiAAtABMYTbaAK4OMeRMCcbGQA)