Description
Introduction
The ABB Tenton® TB/U2.4.1-CG (Order Code: 2CKA006300A1539) is a multifunctional KNX control element designed for intelligent building management. Communicating directly over the ABB i-bus® KNX line without requiring an additional auxiliary power supply, this unit combines up to 4 customizable control function surfaces with an integrated room temperature controller (RTC). Finished in Champagne Metallic, the device integrates seamlessly into modern commercial and residential interior designs. Explore more ABB KNX solutions for professional building automation projects.

Equipped with a built-in monochrome LC display, the TB/U2.4.1-CG provides clear local visibility for current room temperature, setpoint values, operating modes, and fan status. Integrators can program the 4 independent push-buttons for a wide range of building control tasks including switching, dimming, blind and shutter operation, scene selection, or sending arbitrary values.
Key Features
- 2/4-gang configurable control element with 4 independent programmable function buttons.
- Integrated room temperature controller (RTC) with built-in temperature sensor for accurate room climate regulation.
- Monochrome LC display showing setpoint/actual temperature, HVAC operating mode, and fan status.
- Supports switching, dimming, blind/shutter control, scene selection, and value sending.
- Direct bus connection and power supply via ABB i-bus® KNX.
- Flush-mounted wall installation with IP20 protection rating and -5 °C to +45 °C operating range.
- Design finish in Champagne Metallic with integrated anti-theft protection.
Benefits
- Combines room temperature control, display feedback, and multi-gang lighting/shading operation into a single flush-mounted KNX panel.
- Integrated monochrome LC display provides immediate feedback on target and actual temperatures, HVAC modes, and fan speeds.
- Supports multiple standard HVAC operating modes including Comfort, Standby, Economy, and Building Protection.
- Powered directly via the ABB i-bus® KNX connection, eliminating the need for external auxiliary power cabling.
- Features built-in removal and anti-theft protection to safeguard installed hardware in public and commercial facilities.
- Finished in elegant Champagne Metallic (CG) to match modern interior architectural requirements.
Technical Specifications
Applications
- Commercial office environments requiring integrated wall control for HVAC, motorized blinds, and lighting scenes.
- High-end residential installations and hotels requiring room controllers with visible temperature display feedback.
- Institutional and public buildings where flush-mounted wall controls require integrated anti-theft removal protection.
Installation Notes
- Designed for flush-mounted wall installation in indoor environments with operating temperatures between -5 °C and +45 °C.
- Connect directly to the ABB i-bus® KNX line via standard bus terminal connections; no auxiliary power supply is required.
- Utilize the built-in anti-theft protection feature during final wall panel attachment to prevent unauthorized removal.
Developer Resources
- Consult official ABB technical documentation and ETS application database entries for model TB/U2.4.1-CG (Order Code: 2CKA006300A1539) to configure RTC parameters and button assignments.
FAQ
Does the ABB TB/U2.4.1-CG require a separate auxiliary power supply?
No, the device receives all required operating power and bus communication directly through the ABB i-bus® KNX connection. For certificates and current technical files, refer to the manufacturer technical documentation.
What HVAC operating modes are supported by the integrated controller?
The integrated RTC supports Comfort, Standby, Economy, and Building Protection modes.
What information is displayed on the integrated display?
The monochrome LC display shows the actual room temperature, setpoint/target temperature, current operating mode, and fan status.
What functions can be assigned to the push-buttons?
The 4 freely programmable push-buttons can be configured for switching, dimming, blind and shutter control, scene selection, or sending arbitrary values.
What is the exact product model?
The order/model code for this page is TB/U2.4.1-CG. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by ABB.
Conclusion
The ABB Tenton® TB/U2.4.1-CG (2CKA006300A1539) offers a compact, high-functionality control element for KNX building automation. Combining 4 programmable buttons, an integrated temperature controller, LC display, and anti-theft protection in a Champagne Metallic housing, it provides complete climate and room control in a single flush-mounted unit. Installers and system integrators can review our KNX dealer program options.






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