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Relay Trigger for Hot Water System - Printable Version

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+--- Thread: Relay Trigger for Hot Water System (/showthread.php?tid=8576)

Relay Trigger for Hot Water System - swalton - 09-23-2025

Hi All,

I’m after some advice on what to buy. I’d like Home Assistant to trigger a Finder DIN-rail power relay with a 12 V DC coil ( 22.23.9.012.4000 | Finder DIN Rail Power Relay, 12V dc Coil, 20A Switching Current, SPST-NC, SPST-NO | RS ) whenever I have excess solar during the day. 

The relay will switch a hot-water system. Which KinCony device would be the best fit, and can this finder relay coil run on AC as well as DC?

Here is the data sheet  0900766b816bcd62.pdf

   
 
Thanks!

Sam

RE: Relay Trigger for Hot Water System - admin - 09-23-2025

any kincony controller can use , your relay is DC load. you can chose relay board or mosfet board. all can work with your relay.

RE: Relay Trigger for Hot Water System - swalton - 09-23-2025

(09-23-2025, 12:14 AM)admin Wrote: any kincony controller can use , your relay is DC load. you can chose relay board or mosfet board. all can work with your relay.

Thanks! Do you have a recommendation for relay controller I could use? 

I require: 
  • 4-8 outputs 
and a nice have would be the option to turn on and off the relay manually.

Thanks 
Sam

RE: Relay Trigger for Hot Water System - admin - 09-23-2025

B8M: https://www.kincony.com/esp32-smart-controller-b8m-8ch-mosfet.html