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Universal dimming actuator, 2-gang 2x300 W KNX
  • G217200
  • Gir217200
GIRA 217200

Universal dimming actuator, 2-gang 2x300 W KNX

Product code: 2172 00
Dimming actuator with integrated bus coupler for switching and dimming of various light bulbs, 230 V halogen lamps, dimmable HV LED lamps, compact fluorescent lamps and LV halogen lamps with inductive transformers or Tronic transformers. It can also be used as a speed adjuster for speed control of single-phase electric motors.
Price (Excluding VAT)


  • Automatic or manual selection of dimming principle according to load.
  • Idle-state, short-circuit, and excess temperature-proof.
  • Manual operation of the outputs independent of the bus.
  • Independent control of the dimming channels.
  • Central switching function for control of all dimming channels.
  • Delay for actively transmitted feedback messages following bus voltage recovery.
  • Load type and dimming method can be configured: universal (with automatic calibration), electronic transformer (capacitive / trailing edge principle), conventional transformer (inductive / leading edge principle), LED (trailing edge or leading edge principle).
  • Feedback for "switching" and "brightness value".
  • Dimmable brightness range can be set.
  • Dimming behaviour and dimming characteristics can be parameterised.
  • Switch-on behaviour for a relative dimming command can be parameterised.
  • Bulb-saving switch-on and switch-off
  • Alarm telegrams for short circuit, overload, and load failure.
  • Feedback of connected load type.
  • Block function or forced setting function can be parameterised for each output.
  • Time functions (switch-on/off delay, staircase light function).
  • Staircase light function with advance warning function via time-controlled reduction of lighting or activation of permanent lighting.
  • Linking function and up to eight scenes per dimming channel possible.
  • Elapsed-hours meter for recording switch-on time.
  • Reactions after bus voltage failure and recovery can be set.

Technical Details


  • Bus Voltage: KNX Bus 21...30VDC
  • Bus Current Consumption: 15mA
  • External Voltage for Manual control without Bus: 230VAC 50HZ
  • Power Consumption: 4W
  • Outputs: 2
  • Dimming Capacity Per Channel: 300W
  • Connected load range per channel on 230VAC
    • Incandescent Light bulbs: 20 to 300 W 
    • HV halogen lamps: 20 to 300 W 
    • Wound transformer: 20 to 300 W
    • Tronic transformer: 20 to 300 W 
    • HV LED lamps: typically 3 to 60 W 
    • Compact fluorescent lamp: typically 3 to 60 W
  • Connected load range per channel on 110VAC
    • Incandescent Light bulbs: 20 to 150 W
    • HV halogen lamps: 20 to 150 W
    • Wound transformer: 20 to 150 VA
    • Tronic transformer: 20 to 150 W
    • HV LED lamps: typically 3 to 30 W
    • Compact fluorescent lamp: typically 3 to 30 W



Technology KNX
Brand GIRA
Mounting DIN Rail
Operating voltage KNX Bus (29VDC)
Outputs 2
IP rating IP20
Mounting Width 4MW
EAN 4010337082217

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