Schmersal AZM 170SK-02ZRKA Solenoid Interlock Switch

Schmersal AZM 170SK-02ZRKA is a compact solenoid interlock switch with a power-to-lock design that secures machine guards on industrial equipment. The 230 VAC variant provides two normally closed contacts (02) for safety circuits and uses a screw-terminal connection through a single M20 x 1.5 cable entry, all housed in a double-insulated thermoplastic enclosure for long life in harsh environments. Its locking mechanism includes protection against incorrect locking and delivers a high holding force to resist attempts to defeat the guard while energized. The contacts are gilded (gold-plated) for enhanced durability (EC 1637), making the AZM 170SK-02ZRKA suitable for doors and gates on presses, conveyors, and other safety-critical machinery where the guard must be closed to permit operation. Part of Schmersal's AZM 170 family, it combines compact form with robust mounting options for quick integration into safety circuits and standard guard interlock setups.