MDT KNX secure line coupler DIN rail mount

MDT line coupler SCN-LK001.03 – Efficient connection for KNX systems with KNX Data Secure

The MDT SCN-LK001.03 line coupler is the perfect solution for the secure and efficient connection of two KNX bus segments. With integrated KNX Data Secure support, it ensures encrypted communication between lines and areas, guaranteeing reliable signal transmission in modern KNX installations. Thanks to its powerful filtering and diagnostic functions, it significantly contributes to the stability of large KNX networks.

Key features

• Connection of two KNX bus segments
  • Separation and coupling of lines and main lines within a KNX system.
  • Separate bus power supply required for each line.
  • Support for extended group addresses for large and complex installations.
• Advanced security features
  • Integrated KNX Data Secure support (from ETS 5.7) for encrypted data transmission.
  • Protection against unauthorized access and manipulation of telegrams in the KNX bus.
• Efficient communication
  • Optimized filter function to reduce bus load and improve performance.
  • Long Frame Support for fast application download in ETS 5 and ETS 6.
• User-friendly design
  • Compact 2TE enclosure for mounting on DIN rails (35 mm).
  • Easy installation and commissioning via the ETS interface.
  • Made in Germany, certified according to ISO 9001 .

Technical details

• Interface: KNX TP-256.
• Compatibility: ETS 5 / ETS 6 with Long Frame support.
• Power supply: Via KNX bus (separately per line).
• Power consumption: < 0.3 W per line.
• Operating temperature: 0 to +45 °C.
• Protection class: IP20 – suitable for dry indoor areas.
• Dimensions: 2 TE (DIN-mounted device).
• Bus connection: KNX bus terminal for solid conductor Ø 0.8 mm.

Applications

• Connection and segmentation of KNX bus lines in large buildings or multi-zone systems.
• Secure communication between lines with active KNX Data Secure protection.
• Optimization of bus load through efficient filter logic and structured network separation.

Additional benefits

• 3-year warranty for maximum reliability and safety.
• Easy integration into existing and new KNX systems.
• Made in Germany – highest quality for professional building automation.

Product information

Manufacturer part number: SCN-LK001.03
Article number: SMH0276

Shipping costs: free shipping within the EU for orders over €149; for orders under €149, we charge €5.90 shipping costs.

Switzerland: flat rate €25.00

Returns: You can cancel your purchase within 14 days of receipt and then return the products to us. Please note that for sustainability reasons and a fair pricing philosophy, we only cover return shipping costs in the case of a defect or warranty claim.

MDT technologies GmbH
Paper mill 1
DE-51766 Engelskirchen
knx@mdt.de