KNX S1R-BA4-UP 24 V

KNX Actuator for 12/24 V DC Motor

Replacement for N° 70206 KNX S1R-B4-UP 24 V

The Actuator KNX S1R-BA4-UP 24 V with integrated façade controller regulates the 12 or 24 V DC motor for a shutter, an awning, a blind or window. Because the output is designed to be potential-free, other systems can also be controlled, e.g. via the manual switch input on a motor control unit.

Automation is specified externally or internally. Internally, there are numerous options available for blocking, locking (e.g. master-slave) and priority definitions (e.g. manualautomatic). Scenes are saved and called up via the bus (scene control with 16 scenes per drive).

The KNX S1R-BA4-UP 24 V has four inputs that are used as binary inputs (switches, alarm messages etc.) or as analogue inputs for T-NTC temperature sensors.


  • KNX S1R-BA4-UP 24 V KNX S1R-BA4-UP 24 V
  • Potential-free output with polarity changer for a 12 V DC or 24 V DC drive (shade, window)
  • 4 inputs for binary contacts or temperature sensor
  • Automatic runtime measurement of the drives for positioning (incl. fault reporting object)
  • Position feedback (movement position, also slat position for shutters)
  • Position storage (movement position) via 1-bit object (storage and call-up e.g. via buttons)
  • Parameters for taking drive and mechanics downtimes into account
  • Control via internal or external automation functions
  • Integrated shade control with slat tracking according to sun position for shutters
  • Scene control for movement position with 16 scenes per drive (also slat position for shutters)
  • Mutual locking of two drives using zero position sensors prevents collisions e.g. of shade and window (master–slave)
  • Blocking objects and alarm reports have different priorities, so safety functions always take precedence (e.g. wind block)
  • Manual or automatic priority setting via time or communication object
  • 4 temperature switching outputs in the application program with adjustable threshold values (presetting the parameters or communication object)
  • Brief time limit (movement command blocked) and 2 movement limits
  • Configuration is made using the KNX software ETS 5
Housing Plastic
Colour White
Assembly Flush mounting (in junction box Ø 60 mm, 60 mm deep)
Protection category IP 20
Dimensions approx. 50 x 50 x 54 (W × H × D, mm)
Weight approx. 100 g
Ambient temperature Operation -20…+70°C, storage -30…+85°C
Ambient humidity 5...80% RH, non-condensing
Operating voltage KNX bus voltage
Power on bus: 10 mA
at 12/24 V DC: typically 5 mA, max. 10 mA
Output 1 × Potential-free output with polarity changer
for 12/24 V DC drive Up/Down (+/-/motor).
Load capacity: max. 5 A with resistive load
Starting current: max. 5 A
Minimum current for runtime measurement DC effektive 100 mA
Inputs 4× analogue/ digital, max. cable length 10 m.
Setting range for the T-NTC temperature sensor at the input -30°C...+80°C
Data output KNX +/- bus plug-in terminals
BCU type Integrated microcontroller
Communication objects 200