Schmersal AZ16ZVR Safety Interlock Switch

Schmersal AZ16ZVR is a 16 mm safety interlock switch in the AZ16 family, designed for guard door interlocking on industrial equipment. The line includes keyed interlock variants such as AZ16ZVRK-M16 and AZ16ZVRK-M20; the M16 model offers a compact 16 mm form factor, while the M20 version uses a fiberglass-reinforced thermoplastic housing for rugged environments. Each variant provides 1NC/1NO contacts, giving a safety contact for the lock signal and a second contact for auxiliary control or status signaling. The device is designed to be mounted on the guard and used with a corresponding actuator to enforce door closure before the machine can operate. Its keyed interlock variant requires a key for operation, helping prevent tampering and ensuring controlled access. Designed for integration with standard safety control systems, AZ16ZVR interlocks are compatible with safety relays and PLC-based safety circuits, providing reliable signaling when the guard is closed or opened. This makes it suitable for safeguarding a wide range of industrial machinery in facilities that require verifiable door interlocking without compromise to safety.