KNX S1E-B4-UP PS (discontinued item)

Actuator, Output 24 V DC with Supply, 4 Inputs

The actuator KNX S1E-B4-UP PS with integrated façade controller regulates the 24 V DC motor for a shutter, an awning, a blind or window. The electronic output with polarity changer switches silently. An internal power supply transforms the 230 V AC mains voltage into 24 V DC to power the motor (500 mA maximum).
The automation for the drive control is specified externally or internally. Internally, there are numerous options available for blocking, locking (e.g. master-slave) and priority definitions (e.g. manual-automatic). Scenes are saved and called up via the bus (scene control with 16 scenes per drive).
The KNX S1E-B4-UP PS has four inputs that are used as binary inputs (switches, alarm messages etc.) or as analogue inputs for T-NTC temperature sensors.


KNX S1E-B4-UP PS
  • Electronic (semiconductor) 24 V DC output with polarity changer for one drive (shade, window)
  • Integrated power supply transforms the 230 V AC mains voltage into 24 V DC to power the motor (500 mA maximum)
  • 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)
  • 4 AND and 4 OR logic gates each with 4 inputs. 16 logic inputs (in the form of communication objects) are available as inputs for the logic gates. The output from each gate can be configured optionally as 1-bit or 2 x 8-bit
  • Configuration is made using the KNX software ETS
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 52 (W × H × D, mm)
Weight approx. 80 g
Ambient temperature Operation -20…+50°C, storage -30…+85°C
Ambient humidity 5...80% RH, non-condensing
Operating voltage 230 V AC, 50 Hz
Current at the bus 10 mA
Power consumption Standby: ca. 0.3 W (1.6 VA)
Output 1 × output 24 V DC with polarity changer
for drive Up/Down (+/-/motor)
Load capacity:
at 500 mA up to 60 seconds motor travelling time
at 400 mA up to 150 seconds motor travelling time
at 300 mA up to 320 seconds motor travelling time
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
Communication objects 239