The L21 is a type 2 single-beam safety switch, comprising of a sender and receiver and can be used in conjunction with the Flexi Classic and Flexi Soft Safety Controllers. The choices vary from either small M18 sensors with a range of up to 10M, or the compact M30 sensors with a range of up to 30M; you can chose whichever one you feel is most suitable for your personal application.
The L21 can be connected directly to a safety controller, reducing the setting up cost and lowering your company’s downtime. Its versatility means it can be applied in numerous extreme ambient conditions such as cold, moisture, or heat and it can easily be integrated into different versions.
The varying protective fields that can be set up on the device provide flexibility to suit your industrial setting, and there are a variety of uses they can be applied to; most commonly access or area protection in a warehouse / conveyor system, monitoring doors and service openings on machines and optical safety edges if using for protection on an automated guided vehicle.
The straightforward diagnostics and service make the Sick L21 Single-beam Photoelectric Safety Switches the ideal option when updating your safety in the workplace, and DBI Control can help you with any questions you may have about these or any other Sick products. Call 01244 288138 or email [email protected] to find out more.
TECHNICAL DATA OVERVIEW
0 m … 60 m (depending on type)
Light sender/type of light
LED / visible red light
M18 / M30, (depending on type)
(depending on type)
24 V DC (19.2 V DC … 28.8 V DC)
IP 67 (EN 60529)
Ambient operating temperature
–40 °C … +55 °C
Type 2 (IEC 61496) 1)
PL c (EN ISO 13849) 1)
1) Only in combination with an appropriate test device, e.g., Flexi Classic or Flexi Soft.