Siemens 3SE5 312-0SB11 Interlock Switch

Siemens 3SE5312-0SB11 is a safety-position switch with solenoid interlocking from the 3SE5 family, housed in a 54 mm metal enclosure and capable of withstanding a locking force of 2600 N to secure machine access doors. It uses a 24 V DC solenoid to provide a magnetic interlock and supports a five-direction approach for flexible mounting; the unit is supplied without an actuator so you can pair it with a compatible Siemens actuator separately. The device includes monitoring contacts for both the actuator and the magnet (2 NC/1 NO on each side) to verify lock status and door position, aiding safe operation and control-system signaling. Designed for guarding applications in industrial equipment, conveyors, and panel doors, this interlock emphasizes reliability in safety circuits, with the actuator ordered separately to tailor the safety arrangement.