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Elsner Elektronik KNX S4-B12 24 V KNX S4-B12 24 V

Elsner Elektronik

Elsner Elektronik KNX S4-B12 24 V

KNX actuator for motorised shades, blinds or shutters.

Product type
Shades & blinds
Model / SKU
KNX S4-B12 24 V
KNX connection
KNX; consult the exact model documentation and ETS application

Connecting this device to Matter

This product uses KNX. A compatible bridge can expose selected functions to Matter through its IP connection. The KNX device itself does not become a Matter over Thread device.

Functions to map through a bridge

  • Shades / blinds
  • Button events
  • Contact state

Selected native KNX functions can be mapped using a suitable Matter bridge. Additional probes, contacts, couplers, controlled equipment or temperature controllers may be required as described below. Exact device–bridge combinations have not been tested.

Commission the KNX installation in ETS, then configure the bridge with the required group addresses, data types and status feedback. Check the exact bridge firmware and your Matter platform. Native KNX functions, electrical ratings and Matter functions are separate specifications.

Function mapping is not a tested device–bridge pair or individual Matter certification for this KNX model. Protection functions and essential local automation should remain in the KNX installation.

Bridge options by function

These options match the product’s KNX functions to capabilities documented for a bridge. Open the bridge for its requirements and limitations.

1Home Voice & Visu

Function mapping, not a tested device–bridge pair

Shades / blinds · Button events · Contact state

Proposed from documented KNX and bridge function types. Verify the exact ETS application, required command/status objects, KNX Secure access and receiving-app support. This model–bridge pair has not been physically tested.

View mapping source ↗

1Home Server KNX Pro

Function mapping, not a tested device–bridge pair

Shades / blinds · Button events · Contact state

Proposed from documented KNX and bridge function types. Verify the exact ETS application, required command/status objects, KNX Secure access and receiving-app support. This model–bridge pair has not been physically tested.

View mapping source ↗

Atios KNX Bridge

Function mapping, not a tested device–bridge pair

Shades / blinds · Button events · Contact state

Proposed from documented KNX and bridge function types. Verify the exact ETS application, required command/status objects, KNX Secure access and receiving-app support. This model–bridge pair has not been physically tested.

View mapping source ↗

Technical specifications

Shading · Buttons · Door / window input

Manufacturer SKU variants
70533
Motor outputs
4, 12–24 V DC
Inputs
12 binary
Operating voltage
20...32 V DC
Housing
PlasticProduct-family specification; confirm the selected variant.
Colour
WhiteProduct-family specification; confirm the selected variant.
Protection class
IP 20Product-family specification; confirm the selected variant.
Dimensions
approx. 107 x 88 x 60 (W × H × D, mm) , 6 dividing unitsProduct-family specification; confirm the selected variant.
Ambient temperature
Operation -20…+70°C, storage -55…+90°CProduct-family specification; confirm the selected variant.
Bus current consumption
typically 5 mA, max. approx. 80 mAProduct-family specification; confirm the selected variant.
Outputs
4 x Output with polarity changer for motors 12 V DC/24 V DC (+/-), max. 3A separate power supply for each channel (internal or external voltage)Product-family specification; confirm the selected variant.
Specifications with sources (7)

Housing

Plastic

View specification source ↗

published product family

Colour

White

View specification source ↗

published product family

Protection class

IP 20

View specification source ↗

published product family

Dimensions

approx. 107 x 88 x 60 (W × H × D, mm) , 6 dividing units

View specification source ↗

published product family

Ambient temperature

Operation -20…+70°C, storage -55…+90°C

View specification source ↗

published product family

Bus current consumption

typically 5 mA, max. approx. 80 mA

View specification source ↗

published product family

Outputs

4 x Output with polarity changer for motors 12 V DC/24 V DC (+/-), max. 3A separate power supply for each channel (internal or external voltage)

View specification source ↗

published product family

Sources & limitations

Product research reviewed: Nov 5, 2026. This is separate from price, stock and installation-test dates.

Model, firmware & function limitations (4)
  • External contacts/buttons are required for input functions.
  • Only configured button events can be mapped by a supporting bridge; arbitrary scenes, user-interface pages and gestures are not automatically exported.
  • Requires an independently selected KNX-to-Matter bridge and ETS group-address mapping. Exact device/bridge pairing has not been physically tested.
  • Official manufacturer product page confirms the KNX product and the listed native functions. Matter export is a function-level integration candidate, not a manufacturer-tested exact pairing.
Manufacturer documentation & sources (1)
  • Elsner Elektronik — KNX S4-B12 24 V ↗Reviewed Nov 5, 2026
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