The KN-Lcoupler-DN KNX Line Coupler is a high-performance communication module designed to filter bus messages, reduce bus load, extend KNX branch lines, and support flexible topology structures in small and large building automation systems. With dual communication ports, stable KNX bus operation, and support for professional KNX wiring architecture, it is ideal for smart homes, hotels, commercial buildings, and complex KNX network infrastructures.

The KN-Lcoupler-DN KNX Line Coupler is an essential KNX communication component used to connect and segment KNX lines while maintaining secure and optimized data flow. Engineered to support bus message filtering, this line coupler reduces unnecessary telegrams on the bus, ensuring smoother performance and improved stability in large KNX installations. By minimizing excessive data traffic, it significantly enhances the reliability of KNX automation systems in smart homes, offices, hotels, and commercial buildings.

This advanced line coupler also functions as a repeater, allowing users to extend KNX branch lines and achieve greater coverage across multiple floors or large building infrastructures. Whether you are expanding a KNX lighting control system, HVAC automation network, or integrated building management topology, the KN-Lcoupler-DN provides the flexibility needed to scale your automation efficiently.

Supporting KNX-compliant branch topologies, the device ensures high compatibility with all KNX-certified systems and devices. It features a robust 2-fold function port for stable line communication. Designed in a clean white finish, it fits seamlessly into DIN-rail automation panels used in residential and commercial environments.

The device operates reliably on 21–30V DC KNX bus voltage and supports 24–30V DC auxiliary power when extended performance is required. Its durable electronics ensure long-term, maintenance-free operation, making it ideal for large-scale automation systems, intelligent buildings, smart villas, office complexes, hotels, and integrated KNX BMS platforms

Key Features

• Advanced Bus Message Filtering Reduces unnecessary telegrams to ensure stable KNX communication.

• Repeater Functionality Extends KNX branch lines for multi-floor or large-area installations.

• Supports KNX Topology Branching Enables flexible KNX network design for complex building infrastructure.

• Dual Communication Ports (2-Fold) Ensures reliable data flow between KNX main line and branch line.

• Ideal for Large KNX Installations Suitable for smart homes, hotels, office buildings, and BMS systems.

• Highly Compatible Works seamlessly with all KNX-certified devices and ETS configuration.

• Compact DIN-Rail Design Clean white finish suitable for automation control panels.

Technical Specifications