SICK STR1 Series Safety Switch

RFID safety switch with 14mm response range and high manipulation protection. 2 OSSD safety outputs, and Pl e and SIL 3 performance.

This model has 80 variants.
Effective August 29th, 2025 SICK has added a 9.8% surcharge for all of their products. The surcharge will appear as a separate line item on each sales order.
Part Number
  • STR1 Series
Highlights...

Features

  • Actuator coding level:
    • Low coding level (EN ISO 14119)
    • High coding level (EN ISO 14119)
  • Sensing range: up to 14mm
  • Type of output: self-monitoring semiconductor outputs (OSSDs)
  • Number of safe outputs: 2
  • LED status indicator
  • Select variants can be connected with up to 30 sensors
  • Connection type(s):
    • Cable with plug M12, 8-pin
    • Cable with plug M12, 5-pin
    • Cable with plug M8, 8-pin
    • Cable (depending on type)
  • Safe series connection available/ Flexi Loop compatible
    • Depending on type
  • PL e / SIL 3
  • Up to IP69K enclosure rating

The SICK STR1 Series Safety Switch features 2 monitored semiconductor outputs (OSSDs), with safe connection options for individual, or cascading up to 30 sensors. This product family is designed for use in applications where a high level of manipulation protection is required. The STR1 is available with three coded variants. Universally coded sensors accept all actuators. An actuator must be taught into both the uniquely coded and permanently coded variants; this is the only actuator that the STR1 Series then accepts. The sensor has three active sensor surfaces. The actuator comes in four different sizes, allowing the these units to offer maximum mounting flexibility. 

Applications

  • Monitoring of safety doors and removable protective devices
  • Applications requiring a high standard of hygiene
  • Applications where precise guidance of the safety door is not possible
  • Machines and systems on which vibrations occur
  • Monitoring the positions of transfer vehicles