Description
Introduction
The ABB tacteo® KNX Control Element 4-fold, medium (TB/U4.5.1-CG, Order Code: 2CKA006300A1612) is an individually configurable capacitive glass control element engineered for KNX building automation systems. Designed for modern residential and commercial environments, this premium glass panel integrates seamlessly into KNX TP bus networks to provide elegant, intuitive control over lighting, blinds, heating, and room scenes. This device is part of our KNX automation components range.

Built with high-end glass material, this flush-mounted sensor features an integrated bus coupler for direct line connection, an internal room temperature sensor for HVAC integration, and proximity and ambient light sensors to dynamically adjust illumination based on user interaction and room conditions.
Key Features
- 4-fold capacitive glass touch control element tailored for KNX TP systems.
- Customizable icons and text via web configurator for clear functional identification.
- Integrated KNX bus coupler eliminating the need for an external bus interface.
- Built-in proximity sensor that activates backlighting as a hand approaches.
- Integrated ambient light sensor to automatically adjust status LED brightness.
- Integrated room temperature sensor supporting climate and HVAC control functions.
- Multifunctional control support for switching, dimming, shutter/blind control, scene recall, and value sending.
- Flush-mounted glass panel with dimensions of 115 mm x 86 mm and IP20 protection.
Benefits
- Delivers sophisticated architectural design featuring a flush-mounted, ultra-slim high-grade glass finish.
- Simplifies KNX network integration via an integrated KNX bus coupler designed for direct connection to KNX TP lines.
- Offers complete personalization through customizable icons and text using the dedicated web configurator.
- Enhances user interaction with a built-in proximity sensor that automatically illuminates status elements upon hand approach.
- Optimizes visual comfort with an ambient light sensor that adjusts status LED brightness dynamically.
- Supports comprehensive HVAC integration using an integrated room temperature sensor.
Technical Specifications
Applications
- Modern residential buildings for centralized control of room lighting, motorization, and heating scenes.
- Commercial offices and conference rooms requiring customized capacitive touch interfaces for HVAC and lighting.
- High-end hospitality spaces demanding intuitive, backlit wall control elements for guest room management.
Installation Notes
- Designed for flush-mounted installation operating within an ambient temperature range of -5 °C to +45 °C.
- Connects directly to KNX TP bus lines using the built-in integrated bus coupler without requiring external bus units.
- Ensure installation adheres to IP20 ingress protection standards in dry indoor environments.
Developer Resources
- Refer to the official ABB product documentation (Order Code: 2CKA006300A1612) and the ABB web configurator for custom icon set selection and ETS parameter configurations.
FAQ
Does the ABB TB/U4.5.1-CG require a separate KNX bus coupler?
No, the ABB tacteo® TB/U4.5.1-CG features an integrated KNX bus coupler for direct connection to KNX TP lines. Explore more ABB KNX solutions for professional building automation projects.
What control functions can be assigned to the 4 touch points?
The 4-fold touch sensor supports switching, dimming, shutter/blind control, scene recall, and value sending functions. For certificates and current technical files, refer to the official ABB documentation.
How are the icons and labels customized on the glass panel?
Icons and text are individually customizable using the dedicated web configurator prior to ordering.
Does this unit include internal sensors for automation?
Yes, it includes an integrated room temperature sensor, a proximity sensor, and an ambient light sensor.
What is the exact product model?
The order/model code for this page is TB/U4.5.1-CG. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by ABB.
Conclusion
The ABB tacteo® KNX Control Element 4-fold (TB/U4.5.1-CG) combines aesthetic excellence with high-performance KNX automation. Featuring capacitive glass technology, built-in sensors, and full customization capability, it serves as an ideal interface for modern building management. Installers and system integrators can review our installer purchasing support options.






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