Description
Introduction
ABB UD/S4.210.2.1 is a multichannel universal dimming actuator from the ABB KNX range, designed for professional KNX actuator projects where dimming control is required for universal and LED retrofit load types. The product is identified by SKU UD/S4.210.2.1 and Product ID 2CKA006197A0047.

The actuator provides 4 outputs and is described by ABB as an LED-Dim actuator 4x210W. It is optimised for dimming retrofit LED lamps and is also suitable for dimming incandescent lamps, low-voltage halogen lights with conventional or electronic transformers, 230 V halogen lamps and dimmable energy-saving halogen lamps.
Key Features
- Brand: ABB.
- Model and SKU: UD/S4.210.2.1.
- Product ID: 2CKA006197A0047.
- Catalog description: UD/S4.210.2.1 LED-Dim actuator 4x210W.
- Number of outputs: 4.
- Load type: Universal and LED Retrofit.
- Compatible bus system: KNX (TP).
- Degree of protection: IP20.
Benefits
- Supports professional KNX projects with a documented ABB product from the KNX product range.
- Provides 4 outputs for multichannel dimming applications.
- Optimised for retrofit LED lamp dimming while also supporting the load types listed in the ABB product description.
- Automatic load detection is included and can be deactivated where required by the project configuration.
- Separate N-connection per channel supports channel-level wiring organisation according to the product description.
- Manual operation on the device is possible without bus voltage or in an unprogrammed status.
- Fast parameter setting in ETS is supported using copyable channel templates.
Technical Specifications
Applications
KNX lighting-control installations requiring a universal dimming actuator for the supported load types listed by ABB.
Retrofit LED lamp dimming applications where the specified ABB LED-Dim actuator is required in the bill of quantities.
Projects using incandescent lamps, low-voltage halogen lights with conventional or electronic transformers, 230 V halogen lamps, or dimmable energy-saving halogen lamps as described in the product data.
Professional building-automation panels and KNX actuator schedules where ABB UD/S4.210.2.1 is specified.
Installation Notes
- Use the exact ABB model UD/S4.210.2.1 and Product ID 2CKA006197A0047 when matching the project BOQ, purchase order, and technical submittal.
- Programming of the device is possible without applied 230 V supply voltage, according to the product description.
- The product description states that outputs can be connected in parallel in any configuration to increase output power; verify the application against ABB documentation before implementation.
- Refer to ABB instructions and manuals document 2CKA000073B9628 before installation, commissioning, or parameter setting.
- Check the declared rated voltage 110 … 230 V, auxiliary voltage AC/DC 110 V AC/DC, rated frequency 50 / 60 Hz, IP20 degree of protection, and KNX (TP) bus system against the project design.
Developer Resources
- Manufacturer product page: https://new.abb.com/products/en/2CKA006197A0047/ud-s4-210-2-1
- Instructions and Manuals reference: 2CKA000073B9628.
- Declaration of Conformity – CE reference: 2CKA100000E2617.
- Declaration of Conformity – UKCA reference: 2CKA400000E0293.
- ETIM 9 classification: EC001094 – Dimming actuator for bus system.
- ABB brand products on KNXbazzar.com: https://knxbazzar.com/knxshop/?brand=abb
- KNX Actuators category on KNXbazzar.com: https://knxbazzar.com/product-category/knx-actuators/
FAQ
What is the exact model of this ABB KNX actuator?
The exact model and SKU is ABB UD/S4.210.2.1. The Product ID is 2CKA006197A0047. For certificates and current technical files, refer to the official product documentation.
How many outputs does ABB UD/S4.210.2.1 provide?
ABB UD/S4.210.2.1 provides 4 outputs.
Which bus system is listed for this product?
The compatible bus system listed in the product data is KNX (TP).
What load type is stated for this actuator?
The listed load type is Universal and LED Retrofit. The product description also states suitability for retrofit LED lamps, incandescent lamps, low-voltage halogen lights with conventional or electronic transformers, 230 V halogen lamps, and dimmable energy-saving halogen lamps.
Which ABB documentation references should be checked before ordering or commissioning?
Check the manufacturer product page, the instructions and manuals reference 2CKA000073B9628, the CE Declaration of Conformity reference 2CKA100000E2617, and the UKCA Declaration of Conformity reference 2CKA400000E0293.
What is the exact product model?
The order/model code for this page is UD/S4.210.2.1. Match it against project documents before purchase.
Conclusion
ABB UD/S4.210.2.1 is a documented ABB KNX LED-Dim actuator 4x210W with 4 outputs, KNX (TP) bus compatibility, universal and LED retrofit load type, and ABB documentation references for professional specification and procurement. Installers and system integrators can review our KNX dealer program options.
For accurate ordering, verify the SKU UD/S4.210.2.1, Product ID 2CKA006197A0047, EAN 4011395251867, and ABB official documentation against the project requirements.








Reviews
There are no reviews yet.