Description
Introduction
The Theben DU 1 S RF KNX (SKU: 4941671) is a 1-way flush-mounted dimming actuator designed for 250 W loads. Operating via wireless KNX RF communication with integrated KNX Data Secure, this device provides modern lighting control and secure data transmission across smart building automation systems. This device is part of our KNX Actuators range.
Engineered for flexible deployment, the actuator features two binary inputs for floating contacts, accommodating switches, buttons, or temperature sensors (I2). Its optimized dimming output supports dimmable energy-saving lamps, LEDs, incandescent and halogen lamps, as well as dimmable transformers.
Key Features
- 1-channel dimming actuator with a load capacity of 250 W.
- KNX RF wireless communication supporting KNX Data Secure.
- 2 integrated binary inputs for floating contacts and sensors.
- Operating voltage range of 230 V AC at 50 Hz – 60 Hz.
- Protection class II rating for safe electrical operation.
- Screw terminal connection type.
Benefits
- Supports secure wireless KNX RF communication integrated with KNX Data Secure.
- Delivers optimized dimming control for trailing-edge LED lamps, incandescent loads, halogen lights, and dimmable transformers up to 250 W.
- Features 2 binary inputs for connecting floating contacts, switches, buttons, or I2 temperature sensors.
- Compact flush-mounted form factor allows easy installation behind switches or in junction boxes.
- Utilizes screw terminals to ensure robust and stable physical connections.
Technical Specifications
Applications
- Wireless KNX lighting control retrofits where pulling additional bus lines is unfeasible.
- Secure dimming control for 230 V LED and halogen lighting circuits in modern residential and commercial buildings.
Installation Notes
- Designed for flush-mounted installation using standard screw terminal connections.
- Requires an operating voltage of 230 V AC, 50 Hz – 60 Hz, with binary inputs dedicated to floating contacts or approved temperature sensors.
Developer Resources
- Data sheet (PDF)
- Operating instructions (PDF)
- Handbook (PDF)
- KNX-Database Single Product (ZIP)
- KNX-Database All Products (ZIP)
- CE declaration of conformity (PDF)
- Information Notice EU Data Act (PDF)
FAQ
What is the maximum load rating for the Theben DU 1 S RF KNX?
The actuator supports up to 250 W for incandescent/halogen lamps and trailing-edge LED lamps. Explore more theben KNX products for professional building automation projects.
Does this model support secure KNX communication?
Yes, it features wireless KNX RF communication with built-in KNX Data Secure. For certificates and current technical files, refer to the official theben documentation.
What can be connected to the integrated binary inputs?
The 2 binary inputs are designed for floating contacts, including push buttons, switches, or an I2 temperature sensor.
What is the exact product model?
The order/model code for this page is 4941671. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by theben.
Where can I find the official technical documentation?
Use the manufacturer product page and datasheets for this exact SKU. Always verify the latest revision before specifying the product.
Conclusion
The Theben DU 1 S RF KNX (4941671) provides a compact, secure, and highly adaptable 1-channel dimming solution for KNX RF networks. Combining 250 W dimming capacity with binary inputs and KNX Data Secure functionality, it offers a reliable wireless upgrade for modern building automation. Installers and system integrators can review our dealer and project support options.
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