The Siemens 6GT2091-4LH50 is a pre-assembled, highly flexible 6-core communication line that connects an RFID reader to the RF120C communication module. It terminates in a Sub-D 9-pin male connector angled at 45° on one end and an M12 8-pin female straight connector on the other, with a fixed 5 m wire length. Rated for 300 V maximum, the cable carries a UL/ETL listing (CM rating on the cable only, without plug) and EAC approval, making it acceptable for panels destined for North American or Eurasian Economic Union jurisdictions. The braided shield of tin-plated copper wires provides EMI protection for the data signals between reader and module — important when routing near drives or switching power supplies in the cabinet.
Construction details that matter for installation
Cable designation is L-YC11Y 6x1x0.25 (6x24 AWG CM). The sheath is black PVC, halogen-free is not claimed, but it is silicon-free — a relevant constraint for environments where silicone outgassing can contaminate optics or sensors. Rated for continuous flexing with a minimum bend radius of 75 mm, and survives 3 million bending cycles. For single-bend installations the minimum radius drops to 21.6 mm. Maximum tensile load is 200 N — enough for cable-tray pulls but not for winch-style dragging. The cable is resistant to grease, mineral oil, and UV radiation, and its fire behavior meets IEC 60332-1-2 (flame retardant). Operating, storage, transport, and installation temperature range is a uniform -30 to +80 °C.
No direct second-source or cross-reference exists for this pre-assembled reader-to-module cable. The connector set (Sub-D 9-pin male 45° / M12 8-pin female straight) and 5 m fixed length are specific to the SIMATIC RF MV application.