How to connect the 3EM to power?

1. offizieller Beitrag
    • Autor

    I'm interested in getting the 3EM, but I wonder how to mount it. Attaching the clamps is not an issue of course, but connecting the phases looks to be difficult due to the different wire diameters. What is a safe way to install it? If you can share photos that'd be great.

    In the manual it shows that you should use breakers, but it doesn't say which type.

    (you can answer in German, I understand it fine but my grammar is terrible)

    • Offizieller Beitrag

    Hi and welcome to the forum. :)

    Your question suggests that you are not an electrician, correct?

    With the Shelly 3EM you work on 400V and that should only be done with the appropriate expertise!

    On the subject of fuses:

    It is sufficient to connect the Shelly to existing fuses.

    Please get someone with the necessary expertise to help you.

    Thanks.

    • Offizieller Beitrag

    Perhaps our connection diagrams from the encyclopedia will help you to understand it better.


    Anschlussschemen Shelly 3EM

    But as Stefan says, 400V is not a piece of cake, the installation should be done by a professional.

    LG Michael

    Shellyinfiziert seit 2018, In Betrieb: Zur Zeit über 160 Shellys, in der Regel alle Cloudverbunden Testboard mit fast jedem Shellytyp auf dem Markt. Fast 5 Jahre kein übergeordnete System. Nur mit App und WebUI mit Cloudverbindung. Sprachsteuerung mit Alexa:) Seit Anfang 2024 ist HomeAssistant mit am Start. Was Shelly Cloud nicht kann, bzw. Lokal gesteuert werden soll, übernimmt da übergeordnete System.

    • Autor

    Thank you for your concern, I'm getting help but we were looking at the documentation and thinking that the 3EM might need a separate set of breakers because we would be directly connecting it to 40A breakers and we wonder if a malfunctioning 3EM wouldn't be on fire long before the 40A trips?

  • Dieses Thema enthält einen weiteren Beitrag, der nur für registrierte Benutzer sichtbar ist.