SI-LS31 Series Safety Limit (Position) Switches


  • Limit-switch style (EN 50047 and Type 1 per ISO 14119) where actuating elements are integrated with the enclosure
  • Positive opening safety contacts (IEC 60947-5-1) (not dependent on springs)
  • Can be used for safety or non-safety interlocking and position monitoring
  • Choice of actuating system: plunger, roller, spindle-mount lever, and two lever styles
  • Actuator head rotatable in 90° increments
  • IP65 glass-reinforced thermoplastic switch housing; addition of screw to wiring chamber door to minimize defeat
  • Insulated device (IEC 60947-5-1) on all models with plastic housings
  • When properly interfaced or used with an appropriate controller, two switches monitoring an individual guard can achieve safety category 4, per ISO 13849-1 (EN 954-1)
  • Typical applications include monitoring sliding (laterally) gates and guards on machines and in safety fencing systems


Data Sheets

Document Name Part Number File Size Download
1. SI-LM40 Safety Limit Switches 182192 Download
2. SI-LS83 Safety Limit Switches 182191 Download
3. SI-LS31 Safety Limit Switches 182190 Download

Product Brochures

Document Name Part Number File Size Download
1. Safety Solutions 211824 Download


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