Universal KNX Blumotix dimmer actuator (RLC, LED, CFL) with 2 channels. BX-DUNIV is the dimmer capable of delivering up to 300 W at 230 V ac on each of the two available lines. The dimming curves can be configured to suit the type of light source used. Possibility of driving the lamps in two modes: “LE” Leading Edge, with start phase cut, and “TE” Trailing Edge, with end phase cut. The front panel features manual controls for adjusting the outputs.

BX-DUNIV is able to achieve low brightness, even with modern fluorescent lamps or LEDs, stabilises the brightness of energy-saving sources and solves unwanted side effects: buzzing, flashing, unstable operation.

Technical features

  • Input voltage: 230 V ac, 50/60 Hz
  • Power Supply 29 V dc KNX bus
  • KNX section with bus power supply: 10 mA
  • Operating Temperature: -5 ÷ +45 °C (internal use)
  • Humidity: max. 93% (non-condensing)
  • Connection to the BUS: coupling terminal, 2 pins, d=0,8 mm
  • Electric connections: screw terminals, max. cable section 4 mm2
  • Degree of protection: IP20
  • Dimensions: 4 DIN modules


KNX Blumotix 4-channel dimmer actuator for dimming White and RGB LED strips (common anode connection) operating at 12 and 24 V ac.

It provides a maximum current of 7.8 A per channel corresponding to a 40 metre RGB LED strip (14.4 W/m at 24 V). BX-DMO4 regulates brightness by modulating the output voltage.

Technical features

  • Auxiliary power supply 12 ÷ 24 V dc, max 750 W
  • Output voltage: PWM (Vout max = Vin)
  • Output current: max 7.8 A for channel
  • Operating Temperature: -5 ÷ +45 °C (internal use)
  • Humidity: max. 93% (non-condensing)
  • Degree of protection: IP20
  • Dimensions: 4 DIN modules

KNX functions

  • LED intensity adjustment
  • Modulation output voltage of the power supply
  • 4 independent channels


BX-DM03, KNX Blumotix actuator, common anode dimmer for LED lamps with current control.
It has 4 channels that can be programmed to work independently with white lamps or can be synchronised to control the colours of an RGB/RGBW lamp.

Its main feature is that it works with an external power supply unit that can be chosen according to the power to be applied. Each channel can be programmed via dip switches to deliver the appropriate current for the type of lamp installed according to the pre-set standard values: 350 mA, 700 mA and 1000 mA, with 12 or 24 or 48 V dc power supply units.

Technical features

  • Input voltage: up to 48 V dc
  • Maximum output current: 350 mA, 700 mA, 1000 mA
  • Maximum output voltage modulated as a function of input voltage
    Number of outputs: 4
  • Power consumption: up to 200 W
  • Operating Temperature: -5 ÷ +45 °C (internal use)
  • Dimensions: 4 DIN modules

KNX functions

  • Individually programmable channels
  • Brightness adjustment with 4-bit objects (DT3 incremental method) and 1 Byte objects (DT5 brightness percentage)
  • On and off function with 1-bit objects (DT1 on off)
  • Saving the brightness value when the channel is switched off
  • Notification of status
  • RGBW operating mode with synchronized channels
  • Timed management of power-on, power-off and transition
  • 24 programmable scenarios and execution in sequence of colored transitions exploiting the order of the scenarios in sequential or causal way.

Contact us for a quote

OUR SERVICESWhy choose Blumotix

Blumotix designs, develops and manufactures KNX devices for the automation of fully constructed buildings and
assembled in Italy, combining innovation and technology with the elegance of Italian Design.

Blumotix srl
Via Bedazzo, 2
48022 Lugo (RA) – Italy
tel. +39 0545 1895254

P.I. 02136200397
Cap. soc. € 70.000 i.v.

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