Actuator with 2 Multifunctional Outputs, 6 Inputs


The actuator KNX S2-B6-AP with integrated façade control has 2 multifunctional outputs with pairs of buttons and control LEDs for building automation with KNX. Each of the multifunctional outputs can connect to either a drive with Up/Down control (blinds, awnings, shutters, windows) or two switchable devices (On/Off for light and ventilation). The connected drives and devices can be operated directly on the actuator using connected hand switches and for commissioning. There are a wide range of automatic functions available for the façade control. Scenes are saved and called up via the bus (scene control with 16 scenes per drive). 6 binary inputs are used either for direct operation (e.g. hand switches) or as bus switches (for instance for alarm notifications). The desired behaviour is defined precisely through selection of the response times in Standard, Comfort or Deadman mode.

  • Multifunctional outputs each for a 230 V drive (shade, window) or for connecting two switchable devices (light, fan)
  • Binary inputs for use as hand switches or as bus switches (12...42 V)
  • Automatic runtime measurement of the drives for positioning (including fault notification object)
  • Position feedback (movement position, also slat position for blinds)
  • Position storage (movement position) via 1-bit object (storage and call-up e.g. via button)
  • Control via internal or external automation
  • Integrated shade control for each drive output (with slat tracking according to sun position for blinds)
  • Scene control for movement position with 16 scenes per drive (also slat position for blinds)
  • Mutual locking of two drives using zero position sensors prevents collisions e.g. of shade and window (master–slave)
  • Keypad with button pairs and status LEDs for commissioning
  • Blocking objects and alarm notifications have different priorities, so safety functions always take precedence (e.g. wind block)
  • Manual or automatic priority setting via time or communication object
  • 5 Safety objects for each channel
  • Short time restriction (movement command blocked) and movement limitation
  • Configuration is made using the KNX software ETS 5


AssemblySurface-mounted in dry indoor
Protection classIP40
Dimensions (W x H x D)175 mm × 128 mm × 52 mm
Total weight approx.585 g
Ambient temperature-20...+55 °C
Ambient humidity (RH) (non-con
5...95 %
Storage temperature-30...+70 °C
Protective class (PE looped
Overvoltage categoryIII
Degree of contamination2


Operating voltage230 V / 50 Hz
Power dissipation (device in
Total current intake with maximum
1,5 W
16 A
Spring terminal connection0.2…2.5 mm²
Stripping length10 mm

KNX bus:

Configuration modeS-Mode
Group addresses maximum1024
Assignments maximum1024
Communication objects295
Rated voltage (external SELV)30V
Power consumption5 mA
Connection KNX plug terminals0.6…0.8 mm² s
Stripping length5 mm
Duration after bus voltage restoration
until data is received approx.
5 s

Binary inputs:

Internal SELV with joint plus(16...42 V)
Spring terminal connection0.2…1.5 mm²
Maximum cable length10 m

Multifunctional outputs:

Closer contacts
for 2 drives (Up/Down) or 4
devices (On/Off)
Supply via operating voltage
4× μ (< 1.2 mm)
Minimum current for run time
measurement (drives)
100 mA
Spring terminal connection0.2…2.5 mm²
Stripping length10 mm
Motors6 A (cos φ = 0,6)
LEDi400 W (480 μF)
Bulbs / radiant heaters8 A