Siemens 3SE5312-0SD11 Safety Interlock Switch

Siemens 3SE5312-0SD11 is a SIRIUS safety position switch with tumbler lock and guard locking, delivering a robust 2600 N locking force across five directions of approach for door interlock applications. This metal‑enclosed unit uses a spring‑locked mechanism with an auxiliary front release and is operated by a 24 V DC magnet. It includes dual monitored circuits: a monitored actuator (2 NC/1 NO) and a monitored magnet (2 NC/1 NO), providing safe‑state feedback and redundancy in safety signaling. The interlock is supplied without an actuator; order the compatible actuator separately as 3SE5000-0AV0 to complete the installation. As part of Siemens' SIRIUS 3SE5 family, the 3SE5312‑0SD11 is designed for industrial guards where reliable locking and position sensing are required to prevent access during hazardous machine conditions.