Schmersal AZM400 Safety Switch

The AZM400 is a safety rated, motorized bolt lock with an integrated RFID based electronic safety sensor. It is a unique addition to our family of solenoid interlocks and complements our already successful, patented pulse-echo technology and RFID components. The AZM400 meets stringent North American and European Standards, are cUL and CE approved, and can be used in the highest level of machine safety circuits, PLe to ISO13849-1 and SIL 3 to IEC61508 as well as the latest ISO14119 standard.


  • Bi-stable motorized locking bolt which maintains the last locked status in event of power failure
  • Intelligent locking function will autonomously retry if the bolt is obstructed during extension
  • 10,000 N holding force
  • Visual diagnostics via 3 integrated LEDs
  • Rugged aluminum die cast housing
  • M12 quick-connect connector
  • Integrated RFID sensor
  • Individual coding variants available – providing enhanced protection against tampering
  • Manual release (M5 triangle key) or emergency release (T) to manually retract the locked bolt
  • Electronic manual release (E) is available via connection to auxiliary power supply