Description
Introduction
The theben SU 1 S RF KNX (Item no. 4941621) is a flush-mounted 1-way switching actuator designed for integration into modern KNX building automation systems. Operating over KNX RF with Data Secure protection, this unit enables wireless control for switching loads up to 10 A and 130 μF. This device is part of our KNX automation components range.
Equipped with 2 binary inputs for floating contacts, the actuator allows connection of standard push buttons, switches, or a temperature sensor (I2). Adjustable features include normally closed (NC) or normally open (NO) contact logic, standard switching, delayed switching, and pulse function operation.
Key Features
- 1-channel flush-mounted switching actuator rated for 10 A and 130 μF.
- KNX RF wireless protocol support with Data Secure capability.
- 2 binary inputs for floating contacts (e.g., switches, buttons) or temperature sensor (I2).
- Operates on 230 V AC – 240 V AC supply voltage at 50 Hz – 60 Hz.
- Accommodates incandescent and halogen lamp loads up to 1800.
- Handles LED lamp loads: < 2 W (50), 2-8 W (600), > 8 W (600).
- Equipped with screw terminals for secure wiring connections.
- Class II protection rating for flush-mounted base module installation.
Benefits
- Enables secure wireless communication using KNX RF Data Secure technology.
- Includes 2 binary inputs for connecting floating contacts or temperature sensors.
- Supports multiple adjustable switching functions including NC/NO, pulse, and delayed switching.
- Handles high inrush currents up to max. 740 A / 200 μs for demanding load types.
- Designed for flush-mounted installation to streamline setup in standard junction boxes.
Technical Specifications
Applications
- Wireless expansion and retrofitting of KNX automation networks using KNX RF.
- Switching control for LED, incandescent, and halogen lighting circuits.
- Integration of conventional switches, buttons, or temperature sensors via binary inputs.
Installation Notes
- Requires flush-mounted installation using standard screw terminals.
- Connects to an operating voltage of 230 V AC – 240 V AC at 50 Hz – 60 Hz.
- Binary inputs are designed for floating contacts or temperature sensor (I2) connection.
Developer Resources
- Hand book (PDF)
- Information Notice EU Data Act (PDF)
- CE declaration of conformity (PDF)
- Data sheet (PDF)
FAQ
What is the SKU and model number of this actuator?
The item number is 4941621, and the model name is theben SU 1 S RF KNX. Explore more theben automation devices for professional building automation projects.
How many binary inputs are provided on the theben SU 1 S RF KNX?
It features 2 binary inputs for floating contacts, such as buttons, switches, or a temperature sensor (I2). For certificates and current technical files, refer to the official theben documentation.
Does this switching actuator support KNX RF Data Secure?
Yes, it supports KNX RF with Data Secure functionality.
What is the predecessor model for item 4941621?
The predecessor model is 4941620 (SU 1 RF KNX).
What is the exact product model?
The order/model code for this page is 4941621. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by theben.
Conclusion
The theben SU 1 S RF KNX (4941621) provides a compact, secure wireless switching solution for KNX installations. Installers and system integrators can review our dealer and project support options.
With 2 binary inputs and flexible contact configuration options, it offers precise control for lighting and automation tasks.
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