DM 2 T KNX 2 x 400W Dimmed channels
THEBEN 4940270

DM 2 T KNX 2 x 400W Dimmed channels

Product code: 4940270
The FIX2 series is a range of compact devices for switching, dimming, heating, blinds and Inputs. They are standalone units and not compatible with the MIX2 Series.
Price (Excluding GST)


  • 2-way universal dimmer actuator FIX1
  • For dimming dimmable LED, incandescent lamps, LV, HV halogen lamps and energy saving lamps
  • Also suitable for dimming of dimmable energy-saving lamps
  • Also suitable for controlling fans
  • LED switching status display for each channel
  • Manual operation on device (even without bus connection)
  • Dimming output: 400 W/VA per channel or 800 W/VA in parallel operation
  • Automatic load detection (can be deactivated)
  • For R, L and C loads

The dimming output can be upgraded by using additional dimmboosters “DMB 1 T KNX.”

When dimming LEDs - dimming output is increased by 45 W/VA for each dimmbooster.  Output up to a maximum of 980 W/VA is possible by using the maximum of 4 boosters together with 2 dimmer channels joined in parallel operation mode. 

When dimming incandescent lamps, halogen lamps, inductive loads or electronic transformers - dimming output is increased by 300 W/VA for each dimmbooster.  Output up to a maximum of 2000 W/VA is possible by using the maximum of 4 boosters together with 2 dimmer channels joined in parallel operation mode.

It is not possible to use dimmboosters with dimmable energy saving/Compact Fluorescent lamps.

Technical Details


  • Operating voltage KNX: Bus voltage, ≥4 mA 
  • Operating voltage: 230  -  240 V AC 
  • Frequency: 50 HZ
  • Stand-by consumption: <1 W
  • Width: 4 modules
  • Installation type: DIN rail
  • Type of connection: Terminal screws | Bus connection: KNX bus terminal
  • Max. cable cross section: Solid wire: 0.5 mm2 (Ø 0.8) to 4 mm2 | Stranded wire with end sleeve: 0.5 mm2 to 2.5 mm2
  • Number of channels: 2
  • Lamp types: Incandescent, low-voltage and high-voltage halogen and dimmable energy saving lamps and LED
  • Incandescent/halogen lamp load: 400 W
  • LED lamp: Trailing edge (RC-mode) 400 W
  • LED lamp: Leading edge (L-mode) 60 W
  • Energy saving lamps: Trailing edge (RC-mode) 400 W
  • Energy saving lamps: Leading edge (L-mode) 60 W
  • Switching capacity:  min 2W
  • Max. cable length: 100 m
  • Ambient temperature: -5 °C … +45 °C
  • Type of protection: IP20
  • Protection class: II according to EN 60 669



Technology KNX
Dimming Type Mains
Mounting DIN Rail
Input voltage 230VAC
Outputs 2
IP rating IP25
Mounting Width 2MW

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