Safety single-beam sensors

Rugged, ensures reliability under extreme ambient conditions

Your Benefits

  • Extremely rugged for high system throughput
  • Well-suited to extreme ambient conditions such as heat, cold or moisture
  • Few variants because of a uniform sender
  • Easy electrical integration using cable gland and relay outputs


Rugged, ensures reliability under extreme ambient conditions

The WSU/WEU26-3 photoelectric safety switch is used for access protection for hazardous areas on machines or systems. It has a self-testing sender and receiver. The devices are firmly mounted in the access area with the necessary safety distance from the nearest hazardous point, and send a deactivation signal to the machine or system if the light beam is interrupted.

At a glance
  • Type 4 (IEC 61496), SIL3 (IEC 61508), PL e (EN ISO 13849)
  • Rugged construction
  • Universal application possibilities
  • Ranges up to 70 m
  • Relay outputs
  • Front screen heating


Technical overview

  • Technical data overview

    Technical data overview

    Safety levelType 4, PL e, SIL3, SILCL3
    Scanning range20 m / 70 m
    Construction size50 mm x 156 mm x 116 mm
    Supply voltage24 V DC (19.2 V DC ... 28.8 V DC)
    Enclosure ratingIP67 (EN 60529)
    Ambient operating temperature–25 °C ... +55 °C
All technical data can be found accompanying the individual product