Single-beam photoelectric safety switches

Compact type for optimum integration into safety applications up to type 2

Your Benefits

  • Easy integration due to small, compact designs with maximum sensing range
  • Cost savings due to the facility to connect directly to a safe controller
  • Flexible device integration makes it possible to set up individual access protection solutions
  • Well-suited to extreme ambient conditions such as heat, cold or moisture


Compact type for optimum integration into safety applications up to type 2

The L28 single-beam photoelectric safety switch consists of a sender and receiver. The test input of the sender allows direct functional tests. Performance level PL c in acc. with EN ISO 13849-1 or Type 2 in acc. with IEC 61496 can be achieved in conjunction with a safety controller. Suitable safety controllers are, for example, Flexi Classic or Flexi Soft. Color LEDs provide local information about the operational status. The required range can be selected from various device versions. All versions are suitable for outdoor applications and enable even complex safeguarding tasks to be accomplished by using deflector mirrors.

At a glance
  • Type 2 (IEC 61496), SIL1 (IEC 61508), PL c (EN ISO 13849), only in conjunction with suitable testing device, e.g., Flexi Classic or Flexi Soft
  • Compact size with ranges up to 18 m
  • Plastic housing, ABS
  • Enclosure rating IP 67
  • Temperature range from –40 °C to +60 °C


By partnering with us, you can benefit from our expertise in the functional safety of productivity-increasing safety solutions. So that your processes run smoothly, man and machine work as a team, and we can jointly push the boundaries of what is achievable.

Boost your productivity - with safety solutions from SICK


Technical overview

  • Technical data overview

    Technical data overview

    Safety levelType 2, PL c, SIL1, SILCL1
    Scanning range18 m
    Construction size17.6 mm x 87.5 mm x 33.5 mm
    Supply voltage24 V DC (16.8 V DC ... 28.8 V DC)
    Enclosure ratingIP67 (EN 60529)
    Ambient operating temperature–40 °C ... +60 °C
All technical data can be found accompanying the individual product