Siemens 3SE5322-0SB21 Safety Switch

Siemens 3SE5322-0SB21 Sirius safety position switch with solenoid interlock provides guard locking with a 1300 N locking force and five directions of approach, ideal for securing machine doors and safety enclosures in industrial applications. The unit uses a 24 V DC solenoid to lock the magnet, while safety monitoring is delivered for both the actuating element (2 NC/1 NO) and the locking magnet (2 NC/1 NO); the matching separate actuator 3SE5000-0AV0 must be ordered separately to complete the interlock. Built in a plastic enclosure, the switch head carries IP66/IP67 protection, offering robust dust and water ingress resistance in demanding environments. Electrical ratings include insulation voltage up to 250 V, with surge protection up to 4 kV and a shock resistance specification of 30 g for 11 ms, aligning with common safety interlock requirements. This interlock is designed to be paired with Siemens 3SE5000 actuators for customized mounting and operating configurations, ensuring secure locking and reliable safety signaling in automated systems.