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The KNX RF/TP Coupler 673.1 secure is a compact KNX radio coupler in a flush mounted housing. It connects KNX RF devices of a radio line with the KNX bus twisted pair, for KNX installations with ETS®. For KNX S-Mode (ETS). Support of KNX Security, KNX Long Frames, KNX Security Proxy and Segment Coupler. Connections: KNX, internal antenna. Art. no. 5474.
Orders over $500 ship free within the USA (under 50 lbs). Orders under $500 carry a low cost shipping fee.
Most in-stock orders ship within 1–2 business days from Miami, FL. Delivery typically takes 3–5 business days depending on destination.
For freight or oversized orders, our team will contact you with a custom quote.
All KNXSupply products are covered by the manufacturer's warranty, ranging from 1 to 3 years depending on the brand. Warranty terms are fulfilled directly by the manufacturer.
If you experience any issue, contact us and we'll coordinate the claim process on your behalf.