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Time Delay Relay Latch Ideas

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=142928
Printed Date: May 02, 2024 at 4:17 AM


Topic: Time Delay Relay Latch Ideas

Posted By: 1trigger
Subject: Time Delay Relay Latch Ideas
Date Posted: April 29, 2017 at 7:43 AM

I am building a refrigerator for the boat, using electronic cooling modules(ECM's).
Power to the ECM's is run through a 65A power relay, which is switched by the temperature controller.
The ECM's are water cooled and I want a flow switch on the cooling line to open a control relay on the power relay rung, if no flow for x seconds.
The water pump is also run through the same 65A power relay.
The appropriate flow switches all appear to be N.O.

So... I need a way to let the system run on power up, with no cooling water flow, but also shut the system down, if no flow for x seconds.

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Jimm



Replies:

Posted By: the12volt
Date Posted: May 08, 2017 at 8:34 AM
You could use a programmable timer-relay such as this one that would stay on for x seconds after the flow switch opens.

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