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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


  • GIRA E2
  • BERKER B3, B7
  • JUNG A550
  • MERTEN M-Pure
  • Feature: Push Button
  • Colour: Pure white gloss, Black matt
  • Functional Areas: 4-fold
  • Status Display: Yes
  • Colour Display: Yes
  • Digital Labeling: Yes
  • Humidity Sensor: 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 and BE-TAS55T406.01)
  • Additional functions for temperature setting and operation mode (only BE-TAS55T4.01 and BE-TAS55T406.01)
  • 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:


  • Colour: Pure white gloss


  • Colour: Black matt


  • Colour: Pure white gloss
  • Humidity Sensor: Yes


  • Colour: Black matt
  • Humidity Sensor: Yes


Device Configuration App (DCA) ETS5/6
From ETS5.7.x
06/23 V4.5.1.0add to download list
Productdatabase ETS5/604/24V1.2add to download list
Functional overview 03/23 add to download list
Datasheetadd to download list
Assembly and operational instructions 02/24 add to download list
Technical manualadd to download list
Tender texts

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

Date: 06/23
Version: V4.5.1.0

Download: etsapp add to download list


Productdatabase ETS5/6

Date: 04/24
Version: V1.2

Download: knxprod add to download list

Functional overview

Download: pdf add to download list


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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