Schmersal AZ 16-02ZVRK-M20 Industrial Safety Switch

Schmersal AZ 16-02ZVRK-M20 is a mechanical, key-operated industrial safety switch from the AZ 16 family with two NC safety contacts and a separate actuator for safety functions. It provides three M20 x 1.5 cable entries and a large wiring compartment, housed in a glass-fiber reinforced thermoplastic enclosure that measures 52 mm x 90 mm x 30 mm. The housing is self-extinguishing and double insulated, with universal coding for flexible wiring and a design that is resistant to soiling in demanding environments. The unit features slotted holes for adjustment and circular holes for mounting and operates on a mechanical actuation principle. It complies with EN IEC 60947-5-1, EN ISO 13849-1, and EN ISO 14119, making it suitable for safety interlock applications in automated machinery. Suffix variants such as 2254 indicate a 5 N latching force, while 1762 denotes front mounting and 1637 gold-plated contacts, reflecting configurability within the AZ 16-02ZVRK-M20 line.