Functions at a glance

  • With labelling field.
  • For ABB i-bus® KNX devices 6120 U-102, 6109 U and ABB Powernet KNX devices 6920 U-102.
  • Control element with room thermostat function for controlling TSA/K 230.1, TSA/K 24.1 in connection with KNX-Heating actuator, commercially available valve drives or analogue valve drives (continuous controllers).
  • For heating and cooling (PI, PWM or 2-point).
  • Control element: Switch contacts left/right for selecting setpoint and mode of operation
  • Display elements: LCD showing operation modes
  • Protection class (device): IP 20
  • Temperature range (device): -5 °C - 45 °C
  • Storage temperature range: -25 °C - 55 °C
  • Transport temperature range: -25 °C - 70 °C
  • Dimensions: (L x W x D): 63 mm x 63 mm
  • Illumination according to Arb.Stätt.V (German Workplace Ordinance).
  • For compatible lettering software, visit
  • For compatible cover frames, see the following ranges: carat®, pure stainless steel, solo®, Busch-axcent® or future® linear.
  • For software and description please check the current Online-Catalogue.
  • RAL colour number: 7021

Order details

Article No.:6124-81
Order No.:2CKA006134A0167
Customs tariff number:90321080
Info sheet:Download PDF


Instruction manual
Technical manual
Wiring diagram
Room thermostat heating/air conditioning and adaptation to (+/-; 24V) 6120U-102, 6109U and (+/-; 230 V~) 6920U-102