Schmersal AZM-161-B-ST2-AS Safety Solenoid Latching Switch

The Schmersal AZM 161 B ST2-AS RA is a solenoid interlock safety switch designed to lock movable safety guards and prevent access until hazards are cleared, with AS‑Interface Safety at Work for power and data communication. This B variant includes actuator monitoring, a manual release for service access, and a thermoplastic enclosure with double insulation, delivering a high holding force of 2000 N within a compact 130 mm x 90 mm x 30 mm footprint. It is designed for hinged, removable, or sliding guards and provides integrated AS‑Interface feedback with AS‑I parameter bits to indicate lock status, while protecting against incorrect locking. The actuator is ordered separately, reflecting its role as part of a modular safety interlock system built for long life in safety-critical guarding applications.