Description
Introduction
The theben SU 1 KNX (item number 4942520) is a high-performance 1-way flush-mounted switch actuator engineered for integration into KNX building automation systems. Operating on standard KNX bus voltage with a low current draw of less than 4 mA, this compact actuator offers reliable control featuring one normally open (NO) contact and one normally closed (NC) contact with common control. This device is part of our KNX Actuators range.
Designed to meet modern building security standards, the device provides full support for KNX Data Secure encrypted communication. It is engineered to handle various lighting loads, including incandescent, halogen, energy-saving, and LED lamps, making it a versatile choice for system integrators and electrical installers.
Key Features
- 1-channel flush-mounted switching output with 1 NO contact and 1 NC contact using common control.
- Full compatibility with encrypted KNX Data Secure communication.
- Screw terminal wiring connections and dedicated KNX bus terminal connector.
- Supports LED lamp loads up to 600 for 2-8 W and > 8 W configurations.
- Designed for operating ambient temperatures ranging from -5°C to 45°C.
Benefits
- Enhanced network security through full support of the KNX Data Secure protocol.
- Energy-efficient operation consuming less than 4 mA directly from the KNX bus voltage.
- Versatile switching performance across diverse lighting loads including LED, energy saving, and incandescent lamps.
- Robust hardware construction capable of handling peak inrush currents up to 740 A for 200 µs.
- Space-saving flush-mounted form factor ideal for installation in standard electrical back boxes.
Technical Specifications
Applications
- Single-channel lighting switching in residential and commercial KNX building automation projects.
- Flush-mounted switch box installations where compact device depth is required.
- Secure building infrastructure upgrades requiring KNX Data Secure protocols.
Installation Notes
- Mount the device using flush-mounted installation methods inside suitable electrical back boxes.
- Connect circuit loads to the integrated terminal screws and connect the network using the provided KNX bus terminal.
- Ensure ambient operating temperatures remain within the spec range of -5°C to 45°C.
Developer Resources
- ETS database files available in ZIP format for single product and full line integration.
- Official documentation provided in PDF format including Data Sheet, Handbook, Brochure, and Operating Instructions.
FAQ
Does the theben SU 1 KNX support secure bus communication?
Yes, the actuator natively supports KNX Data Secure for secure, tamper-proof communication on the KNX network. Explore more theben KNX products for professional building automation projects.
What load capacity does the device support for LED lighting?
The actuator supports 50 for LED lamps under 2 W, and up to 600 for LED lamps rated between 2-8 W and above 8 W. For certificates and current technical files, refer to the official product documentation.
What is the contact arrangement of the switching channel?
The actuator provides 1 NO contact and 1 NC contact operating under common control on a single channel.
What is the exact product model?
The order/model code for this page is 4942520. 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 SU 1 KNX (4942520) delivers secure, compact, and reliable 1-channel load control for modern KNX automation systems. Installers and system integrators can review our professional project support options.
With full KNX Data Secure encryption and robust load handling capabilities, it is an optimal choice for professional flush-mounted switch installations.
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