The 3SE5322-0SB21 is a SIRIUS mechanical safety switch with a magnetic field lock (open-circuit principle) — the lock releases when power is removed, so a machine guard stays locked until the solenoid is deliberately de-energised. The 1 300 N locking force (EN ISO 14119) means it resists forced opening well beyond what a typical solenoid guard can apply, making it suitable for access gates on high-energy press or robot cells where an operator might lean into the guard. Positive-opening contacts (slow-action, per) guarantee the NC contact breaks mechanically even if welded — a requirement for safety circuits up to SIL 3 / PL e. The 0.05 mm repeat accuracy means the switch triggers at the same actuator position cycle after cycle, critical for interlocking a guard door that must align with a fixed stop.
Rated electrical envelope
Rated thermal current Ith = 10 A, with utilisation ratings of 6 A at 120 V AC, 3 A at 240 V AC, and 3 A at 24 V DC. IP66/IP67 protection means the housing withstands high-pressure washdown and temporary submersion — fit for food-processing, chemical, or outdoor conveyor applications where the switch sees hose-down cleaning.
Plastic enclosure, 54 mm wide × 185 mm long, with three M20 × 1.5 cable entries. Screw-type terminals accept 1× (0.5…1.5 mm²) solid or 2× (0.5…0.75 mm²) solid — plan for ferrule termination on stranded wire to avoid strand breakout under the screw. Mounting position any, so it fits vertical or horizontal guard frames without derating. The separate actuator (tumbler design) allows five directions of approach — the actuator can enter from the side, top, or angled, simplifying alignment on a hinged or sliding guard door. No integrated interface (no IO-Link or AS-Interface) — it's a pure hard-wired safety switch.
Listed as current production. No official successor or cross-reference — the 3SE5322-0SB21 is the active order code for this magnetic-lock variant.