KNX IO Universal Dimmer 530

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The KNX IO 530 (1D2I) is a compact mains dimmer for 230 V ~ with one output and two binary inputs. The dimming actuator supports phase control or phase section and is thus suitable for all dimmable 230 V lamps (eg incandescent lamps, dimmable LED lamps, halogen lamps). The dimming channel offers various comfort functions, including scenes, automatic, snooze function, staircase lighting and sequencer.

The inputs can be controlled via conventional switches with an external voltage of 230 V. In addition to the output and input channels, the device contains 16 independent logic or timer functions. Two buttons and three LEDs on the front of the device allow local operation and visualization of the device status.


 Mechanical data

  • Housing: plastic
  • DIN rail mounted device, width: 1 modules (18 mm)
  • Weigth: approx 60 g

User Interface

  • 2 buttons and 3 LEDs, multicolor
  • KNX programming button with LED (red)


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


  • Connector for KNX Bus (red / black)
  • Pluggable screw connector (3 poles) for dimming
  • Pluggable screw connector (3 poles) for binary inputs

Output channel (dimming actuator)

  • Dimming mode: Leading / trailing edge
  • Supply voltage: 230 V~
  • Pmax : 200 W, details see manual
  • Standby power: < 0.2 W

Input channel (binary in)

  • Voltage: 230 V~
  • Current: < 1 mA
  • Only same potential as output