Sick L21E Series Laser Scanner Receiver, 1 Beam(s)

The L21 single-beam photoelectric safety switch consists of a sender and receiver. The test input on 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.

Type 2 (IEC 61496), SIL1 (IEC 61508), PL c (EN ISO 13849), only in conjunction 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
Metal and plastic version
Radial optics (90° deflector mirror)
Straightforward diagnostics and service

Easy integration due to small, compact versions with maximum range
Directly connect to a safety 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

Fields of applications
Access or area protection in warehouse/conveyor systems
Monitoring of doors and service openings on machines
Optical safety edges for protecting automated guided vehicles