Nice RD400 Gate Automation

  • Hello guys, I'm wondering if i could use a Shelly uni for my gate opener. I'm a little confused; on knowledge base, it says UNI can support up to 24vac as output, but on product page/store it says 36vac. The voltage I need switched is 24~36vac peak. Can't I use it anyways since it will be switched for about 500ms?

    Einmal editiert, zuletzt von Nicco (27. März 2022 um 05:37)

  • At first, we have to discern between the supply voltage of the Shelly UNI (which must not be higher than 24V AC!) and the voltage the two outputs can handle: Both outputs are guarded against voltage spices by suppressor diodes (aka TVS diodes), which are activated at about 36 to 38 Volts (peak). Have a look at this (unfortunately in German language)

    thgoebel
    23. Juni 2021 um 17:21

    Thus, the planned application is critical: I may work - but there will be no guarantee…

    And, by the way: Please keep in mind that maximum current switched by the digital output is 100mA!

    Addendum #2: Welcome to the forum!

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  • Thanks! I did some testing and its voltage is 30vac, but of course, that won't remain constant. I think the UNI will work, maybe on a bad day, the diodes might conduct. I will take the risk. :)