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Push-button Smart 55


The MDT Push-button Smart 55 has a central colour display and mechanical push-buttons. The buttons can be used individually or grouped (horizontally or vertically). In addition to the status indication in the display, each button has its own RGB status LED. The RGBW status LEDs can be controlled using internal or external objects. The LED brightness can be controlled using a day / night and brightness object. Aside from switching, dimming, shutter, scenes or sending values, there are numerous functions to choose from. The Push-button Smart 55 has 4 integrated logic modules.


The MDT Push-buttons Smart 55 fit into the switch lines of leading manufacturers, such as:

  • GIRA Standard 55, E2, E22, Event, Esprit
  • BERKER S1, B3, B7
  • JUNG A 500, A PLUS, A CREATION, AS 500, A550, A FLOW
  • MERTEN 1M, M-Smart, M-Plan, M-Pure
  • Feature: Push Button
  • Colour: Pure white gloss
  • Functional Areas: 4-fold
  • Status Display: Yes
  • Colour Display: Yes
  • Digital Labeling: Yes
  • Humidity Sensor: No, Yes
  • Assortment: 55 mm

Product features

  • Fits 55 mm systems / ranges
  • Active color display for function and status indication
  • Adjustable background color of the display (white or black)
  • Automatic display brightness via light sensor and day / night object
  • Visualization of indoor / outdoor temperature and time
  • With temperature / humidity sensor for room temperature measurement (only BE-TAS55T4.01)
  • Additional functions for temperature setting and operation mode (only BE-TAS55T4.01)
  • New multi-touch function, sends up to 4 values / DPTs on the same or different objects
  • Innovative group control with long / extra long button press
  • 1 and 2 button operation for switching, dimming, shutters, values
  • Symbols and plain text adjustable for each button / function
  • Short / long button push and 2 objects
  • Installation in an installation box with included support ring
  • Recommended installation height: 1.05 - 1.20 m
  • No additional power supply required
  • Integrated bus coupling unit
  • Production in Germany certified according to ISO 9001
  • 3 year warranty

Available Variants of this series:



    • Humidity Sensor: Yes


    Productdatabase ETS5/6
    From ETS5.7x
    V1.1a add to download list
    Device Configuration App (DCA) ETS5/6
    From ETS5.7.x
    V4.5.0.0add to download list
    Datasheetadd to download list
    Functional overviewadd to download list
    Assembly and operational instructionsadd to download list
    Technical manualadd to download list
    Tender texts

    Productdatabase ETS5/6
    From ETS5.7x

    Version: V1.1a

    Download: knxprod add to download list


    Device Configuration App (DCA) ETS5/6
    From ETS5.7.x

    Version: V4.5.0.0

    Download: etsapp add to download list


    Download: pdf add to download list

    Functional overview

    Download: pdf add to download list

    Assembly and operational instructions

    Download: pdf add to download list

    Technical manual

    Download: pdf add to download list

    Tender texts

    Download: Link

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