Can Uni accept dry contact input?

  • Welcome to the forum!

    Yes, both digital inputs (IN-1, IN-2) of Shelly UNI may be controlled by dry contacts. One side of the contact must be wired with pin ‘SENS Vcc’, the other with the appropriate input (IN-1 or IN-2).

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

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  • Welcome to the forum!

    Yes, both digital inputs (IN-1, IN-2) of Shelly UNI may be controlled by dry contacts. One side of the contact must be wired with pin ‘SENS Vcc’, the other with the appropriate input (IN-1 or IN-2).

    Thank you for the welcome and thank you even more for the answer! That's what I was hoping. So I'd wire it like this diagram I suppose?

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    I'd just need to trial and error which the COM and NC out of my sensor go to on the Shelly

  • It would be more convenient and reliable to use the SENS Vcc pin (4) for the high side of the contacts, as I mentioned above.

    „Habt Geduld. Alle Dinge sind schwierig, bevor sie einfach werden!“ (aus Frankreich)

    „Nothing in life is to be feared, it is only to be understood.“ (Marie Curie, 1867-1934)

    „Comment is free, but facts are sacred“ (C.P. Scott, britischer Verleger)

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