Description
Introduction
The ABB UD/S4.315.2.1 is a KNX actuator in the KNX Actuators category, identified by Product ID 2CKA006197A0057 and EAN 4011395251966. It is described by ABB as an LED-Dim actuator 4x315W with 4 outputs for KNX (TP) installations. This device is part of our KNX Actuators products range.

This multichannel universal dimming actuator is optimised for dimming retrofit LED lamps (LEDi). It 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 extended product type: UD/S4.315.2.1.
- Product ID: 2CKA006197A0057.
- Catalog description: LED-Dim actuator 4x315W.
- Number of outputs: 4.
- Load type: Universal and LED Retrofit.
- Compatible bus system: KNX (TP).
- Degree of protection: IP20.
Benefits
- Supports KNX (TP) projects where a 4-output dimming actuator is required.
- Optimised for retrofit LED lamps while also covering multiple listed lamp and transformer load types.
- Automatic load detection is included and can be deactivated when required by the project setup.
- Manual operation on the device is possible without bus voltage or in an unprogrammed status.
- Programming of the device is possible without an applied 230 V supply voltage.
- Fast parameter setting in ETS is supported using copyable channel templates.
- Extensive test and diagnosis functions are available for the i-Bus tool.
Technical Specifications
Applications
- KNX lighting control projects requiring a universal dimming actuator for listed LED retrofit and halogen lamp types.
- Commercial and residential building automation projects where the BOQ specifies ABB UD/S4.315.2.1 or Product ID 2CKA006197A0057.
- Retrofit lighting upgrades using dimmable LED retrofit lamps within a KNX project design.
- Projects using ETS parameter setting and i-Bus tool test and diagnosis functions.
Installation Notes
- Verify the exact model UD/S4.315.2.1 and Product ID 2CKA006197A0057 against the project BOQ before ordering.
- Use ABB Instructions and Manuals reference 2CKA000073B9628 for official installation and commissioning details.
- The actuator has a separate N-connection per channel.
- Parallel connection of the outputs is possible to increase output power, and outputs can be connected in parallel in groups.
- Minimum load stated in the product data is 2 W.
Developer Resources
- Manufacturer product page: https://new.abb.com/products/en/2CKA006197A0057/ud-s4-315-2-1.
- Instructions and Manuals reference: 2CKA000073B9628.
- Declaration of Conformity – CE reference: 2CKA100000E3581.
- EPLAN Data reference: 9AAC189180_EPLAN.
- ETIM 9 and ETIM 10 classification: EC001094 – Dimming actuator for bus system.
- KNXbazzar category page: https://knxbazzar.com/product-category/knx-actuators/.
- ABB brand page on KNXbazzar: https://knxbazzar.com/knxshop/?brand=abb.
FAQ
What is the ABB UD/S4.315.2.1?
The ABB UD/S4.315.2.1 is a KNX (TP) LED-Dim actuator 4x315W with 4 outputs. ABB describes it as a multichannel universal dimming actuator optimised for dimming retrofit LED lamps. Explore more ABB automation devices for professional building automation projects.
Which load types are listed for this actuator?
The listed load type is Universal and LED Retrofit. The product description also states suitability for incandescent lamps, low-voltage halogen lights with conventional or electronic transformers, 230 V halogen lamps, and dimmable energy-saving halogen lamps. For certificates and current technical files, refer to the official ABB documentation.
Can the ABB UD/S4.315.2.1 be operated before KNX bus voltage is available?
Yes. The product data states that manual operation on the device is possible without bus voltage or in an unprogrammed status.
Can the device be programmed without 230 V supply voltage?
Yes. The product data states that programming of the device is possible without applied 230 V supply voltage.
Which documentation references should be checked before procurement?
Check the ABB manufacturer page, Instructions and Manuals reference 2CKA000073B9628, Declaration of Conformity – CE reference 2CKA100000E3581, and the Product ID 2CKA006197A0057 against the project BOQ.
What is the exact product model?
The order/model code for this page is UD/S4.315.2.1. Match it against project documents before purchase.
Conclusion
ABB UD/S4.315.2.1 is a KNX (TP) multichannel universal dimming actuator with 4 outputs, designed for projects requiring ABB’s LED-Dim actuator 4x315W and support for the listed universal and LED retrofit load types. Installers and system integrators can review our KNX dealer program options.
For accurate procurement, confirm the model, SKU, Product ID, EAN, official manual reference, and project BOQ before ordering.








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