Schneider Electric Telemecanique XCS-TA A300 Safety Switch

The Schneider Electric Telemecanique XCS-TA A300 Safety Switch is a 3‑pole, key‑operated safety interlock designed to monitor guard doors and access points in industrial machines, delivering slow‑break, positive‑opening contacts for reliable interlocking. Part of the XCS Safety Switches family, it is commonly installed on robotic cells, packaging machinery, conveyors, machine tools, and automated manufacturing equipment to help prevent hazardous operation when entry points are open. Key specifications include a 500 V rated insulation voltage (Ui), A300 AC‑15 contact rating, and rated currents of 6 A at 120 V AC or 3 A at 240 V AC; it uses screw terminal connections and can be mounted on panels or directly on equipment. The housing is high‑impact thermoplastic (series dependent). It complies with IEC 60947‑5-1, ISO 13849-1, IEC 61508, UL, and CSA, supporting industrial safety and machine‑safety requirements. Applications span automated production lines, CNC machines, robotic work cells, material handling, packaging, and process automation where guard doors and protective barriers must be monitored to stop hazardous machinery when opened. Common replacements include Schneider Electric XCSTA591 Safety Switch and Siemens 3SE5232-0HC05 Safety Position Switch, providing retrofit options for evolving safety systems.