Description
Introduction
The GEWISS GW90721A 4-Channel KNX Interface Module is designed to integrate seamlessly into modern building management systems. Built upon the proven KNX protocol standard, this versatile interface provides reliable signal integration for advanced automation across residential projects and small-to-medium office spaces. This device is part of our KNX automation components range.

As a core component within the GEWISS automation ecosystem, the GW90721A enables tailored configuration to meet specific project needs. System integrators and electrical contractors can rely on this compact interface to ensure accurate signal transmission and high operational stability in customized control topologies.
Key Features
- 4 independent control channels for digital input signal processing.
- Designed specifically for integration within GEWISS KNX system architectures.
- Supports advanced automation routines in residential and commercial environments.
- Compact housing design suitable for efficient cabinet layout and installation.
- Standardized system integration matching official manufacturer technical guidelines.
Benefits
- Native KNX compatibility ensures effortless interoperability across standard KNX automation systems.
- Four dedicated channels provide flexible input interfacing for customized control layouts.
- Optimized for modern residential and small-to-medium office building automation requirements.
- High level of personalization allows system integrators to meet exact project specifications.
- Manufactured by GEWISS, offering dependable performance and building control reliability.
Technical Specifications
Applications
- Advanced residential automation systems requiring customized input interfacing.
- Small to medium-sized office spaces for streamlined operational control.
Installation Notes
- Verify the model number (GW90721A) against your project Bill of Materials (BOQ) prior to unpacking.
- Ensure installation adheres strictly to GEWISS technical documentation and local KNX wiring standards.
- All wiring and bus connections must be performed by qualified automation technicians.
Developer Resources
- Manufacturer Technical Product Page: https://www.gewiss.com/hu/hu/products/product.1000000.1008316.GW90721A
FAQ
What is the primary function of the GEWISS GW90721A?
The GW90721A is a 4-channel KNX interface module used to integrate binary signals into a KNX building automation system for residential and small-to-medium office applications. Explore more GEWISS KNX solutions for professional building automation projects.
How do I verify if the GW90721A matches my project specifications?
Cross-check the SKU GW90721A against your architectural design and Bill of Materials (BOQ), and consult the official GEWISS technical documentation before ordering. For certificates and current technical files, refer to the manufacturer technical documentation.
Where can I find the official ETS product database or documentation for this item?
Official documentation and product data files can be accessed via the manufacturer portal link provided in the technical resources section.
What is the exact product model?
The order/model code for this page is GW90721A. Match it against project documents before purchase.
Who is the manufacturer?
This product is manufactured by GEWISS.
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 GEWISS GW90721A 4-Channel KNX Interface delivers reliable, protocol-compliant signal integration tailored for modern residential and office automation. Installers and system integrators can review our professional project support options.
Before procurement, confirm exact system requirements and verify the SKU GW90721A with your project documentation.






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