CET-AP Safety Switch


CET-AP Non-Contact Safety Switches are used to monitor the position of movable machine guarding by means of Inductive Coding. These systems are designed for use in areas where a high level of tamper resistance and safety is required. These systems feature an inductive read head with built-in evaluation and a digitally coded actuator. Unlike universally coded magnetic switches, the CES actuators are uniquely coded and cannot be bypassed by any means. The safety switch CET-AP with guard locking is based on the proven transponder principle. The CET-AP has an integrated evaluation module making it a complete package. Series CET-AP-...-SI-... switches with two M12 plug connectors have special pin assignments that make direct connection to decentralized peripheral systems such as the Siemens ET200pro possible.



  • Available in Unicode and Multicode versions
  • Safety switch with guard locking and guard locking monitoring
  • Integrated evaluation module
  • Direct connection to decentralized peripheral systems
  • Die-cast aluminum housing for harsh environments
  • Status LED's
  • High locking forces up to 6,500 N (1461 lb)


  • Achieves the highest level of safety
  • Highest protection against tampering
  • Non-contact system
    • Overcomes misalignment issues
    • Vibration resistant
  • Fault diagnostics
    • Minimizes down-time
  • Operates under extreme environmental conditions e.g. dirt, moisture, ambient temperature


  • Available in Mechanical locking and Electrical locking
  • M12 connector
  • Environmental Protection IP67 - oil and dust tight, and water resistant
  • Ambient operating temperature -20 to 55C
  • Operating voltage 24VDC +/- 15%
  • Current consumption 80mA
  • Safety output 200mA max load
  • 24VDC 12 watt solenoid
  • High locking forces up to 6,500 N (1461 lb)
  • Reverse polarity protected, integrated bridge rectifier

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