The Siemens 6GT2391-0AE60 is a highly flexible coaxial cable assembly — designated 2YCC11Y 0.9/2.85 LI VZN BK — that links a short-range HF antenna (ANT 3, 3S, 8, 12, 18, or 30) to a SIMATIC RF200 or RF300 reader via M8 connectors. One end is a straight 4-pin male M8; the other is a 4-pin male M8 angled at 90°. That angled plug is the detail that matters on a tight panel or machine frame — it saves you a right-angle adapter and keeps the bend radius under control.
Physical and environmental toughness
Jacket is PUR, black, halogen-free and silicon-free — important for clean-room or food-area installations where outgassing or contamination is a concern. The cable is flame-resistant per IEC 60332-1-2, so it won't propagate a fire along a cable tray. Temperature range is a wide -40 to +80 °C across storage, transport, installation, and operation — one spec covers all four phases, meaning it can sit in a hot enclosure or a cold warehouse without derating. It's also UV-resistant, so outdoor antenna runs are fine as long as the connectors are protected from direct weather.