TZ Series Solenoid Locking Safety Switch


EUCHNER TZ Safety Switches are used to protect personnel by monitoring and interrupting the safety circuit depending on the position of the machine guard. The locking solenoid holds the guard closed until a stored energy hazard has passed. It can also prevent damage to a part in process due to an inadvertent machine shutdown. To meet current worldwide standards, safety interlock components cannot be easily bypassed. These switches have positive opening contacts and redundancy to guarantee that they fail to a safe state. The metal TZ switch has become a standard within the machining industries and is always evolving with each new innovation to safety switches.



  • Solenoid locking
  • Rotatable actuating head
  • Actuator overtravel minimizes end stop potential
  • Large selection of actuators
  • Flexible contact configurations
    • Up to 4 safety contacts
    • Up to 4 monitoring contacts
  • 2 status LED's available
  • Tamper proof screws available
  • Custom versions available
  • Control devices


  • Multiple contacts increasing safety capability
  • Pre-wired plug connector
    • Reduces installation cost
    • Eliminates mis-wiring
  • Manual bypass
    • Simple front bypass
    • Optional security key bypass
    • Optional rear release
  • Optional slide bolt actuator overcomes actuator misalignment
  • High locking force


  • Anodized die-cast alloy housing
  • Environmental protection IP67- oil and dust tight, and water resistant
    • Exceeds NEMA 4
  • Ambient operating temperature -25 to 80C
  • 2 million mechanical operations
  • Solenoid
    • Mechanical locking or electrical locking
    • Voltages
      • 24 VAC/DC
      • 110VAC
      • 230VAC
  • Ambient operating temperature -25 to +80C
  • Contacts
    • Silver Alloy, Gold Flashed
    • Low current contacts available

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