KNX IO Switching Actuator 510

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The KNX IO 510 (2O) is a compact switching actuator with 2 bi-stable relay outputs. The actuator provides the function for universal outputs including scene control, timer, staircase lightning and to control heating valves (PWM for thermoelectric valve drives).

Two push buttons and three LEDs allow a local operation and a visualization of the device state. In addition to the output channels the device includes 16 independent functions for logic or timer control.

Mechanical data

  • Housing: plastic
  • DIN rail mounted device, width: 1 modules (18 mm)
  • Weigth: approx 50g

User Interface

  • two keys for on device settings
  • three multi color LEDs
  • KNX programming LED and KNX programming key


  • Device Model System B
  • Compatible with ETS 4.2 (or higher)


  • Connector for KNX Bus (red / black)
  • Pluggable screw connector (3 poles) for actuator channel 1
  • Pluggable screw connector (3 poles) for actuator channel 2

Output channels (actuator)

  • Relay type: 230V~/8A, bi-stable
    Depending on load type (capacitive or inductive)
    the switching power can be reduced significantly.