Safety single-beam sensors

Universal use up to type 4 with safe control solutions from SICK

Your Benefits

  • Easy integration due to small, compact versions with maximum range
  • Directly connect to a safey controller – reducing costs
  • Flexible device integration makes it possible to set up individual access protections
  • Well suited to withstand extreme ambient conditions such as heat, cold or moisture


Universal use up to type 4 with safe control solutions from SICK

The L41 single-beam photoelectric safety switch consists of a sender and a receiver. The test input of the sender supports direct functional testing. Performance level PL e to EN ISO 13849 or Type 4 to IEC 61496 can be achieved in conjunction with an evaluation unit. Suitable evaluation units include Flexi Classic or Flexi Soft. Color LEDs provide local information about the operational status. The required sensing range can be selected from various device versions. All devices are suitable for applications in challenging ambient conditions and enable even complex protection tasks to be accomplished by using deflector mirrors.

At a glance
  • Type 4 (IEC 61496), SIL3 (IEC 61508), PL e (EN ISO 13849), only in conjunction with suitable testing device, e.g., Flexi Classic or Flexi Soft
  • Small M18 sensors with ranges up to 10 m
  • Compact M30 sensors with ranges up to 60 m
  • Enclosure rating IP 67
  • Temperature range from –40 °C ... +55 °C
  • Radial optics (90° deflector mirror)


Technical overview

  • Technical data overview

    Technical data overview

    Safety levelType 4, PL e, SIL3
    Scanning range7 m / 16 m / 84 m
    Construction sizeM18 / M30,
    107.7 mm
    97.7 mm
    100 mm
    85.3 mm
    Supply voltage24 V DC (19.2 V DC ... 28.8 V DC)
    Enclosure ratingIP67 (EN 60529)
    Ambient operating temperature–40 °C ... +55 °C
All technical data can be found accompanying the individual product