SICK L21S Series Light Curtain Sender, 1 Beam(s)
- RS Stock No.:
- 285-9638
- Mfr. Part No.:
- L21S-21KA1A
- Brand:
- SICK
Subtotal (1 unit)*
£79.46
(exc. VAT)
£95.35
(inc. VAT)
FREE delivery for orders over £50.00
In Stock
- 3 unit(s) ready to ship from another location
- Plus 999,999,996 unit(s) shipping from 17 December 2025
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Units | Per unit |
|---|---|
| 1 + | £79.46 |
*price indicative
- RS Stock No.:
- 285-9638
- Mfr. Part No.:
- L21S-21KA1A
- Brand:
- SICK
Specifications
Technical Reference
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | SICK | |
| Series | L21S | |
| Component Type | Sender | |
| Safety Type | 2 | |
| SIL IEC 61508 | SIL 1 | |
| PL EN ISO 13849-1 | PL c | |
| Number of Beams | 1 | |
| Maximum Scanning Distance | 16m | |
| Maximum Response Time | 0.2 ms | |
| Supply Voltage | 24 V dc | |
| Length | 97.7mm | |
| Terminal Type | M12 Connector | |
Select all | ||
|---|---|---|
Brand SICK | ||
Series L21S | ||
Component Type Sender | ||
Safety Type 2 | ||
SIL IEC 61508 SIL 1 | ||
PL EN ISO 13849-1 PL c | ||
Number of Beams 1 | ||
Maximum Scanning Distance 16m | ||
Maximum Response Time 0.2 ms | ||
Supply Voltage 24 V dc | ||
Length 97.7mm | ||
Terminal Type M12 Connector | ||
- COO (Country of Origin):
- IT
Overview
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 conjunct
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 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
Temperatur
Small M18 sensors with ranges up to 10 m
Compact M30 sensors with ranges up to 60 m
Enclosure rating IP 67
Temperatur
Your Benefit
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 cond
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 cond
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
Monitoring of doors and service openings on machines
Optical safety edges for protecting automated guided vehicles
Note
Product details cover the whole product family. For details on the specifications for this individual product, please refer to the datasheet.
Related links
- SICK L21S Series Laser Scanner Sender, 1 Beam(s)
- SICK L41S Series Light Curtain Sender, 1 Beam(s)
- SICK L40S Series Light Curtain Sender, 1 Beam(s)
- SICK L21E Series Light Curtain Receiver, 1 Beam(s)
- SICK L40E Series Light Curtain Receiver, 1 Beam(s)
- SICK L41E Series Light Curtain Receiver, 1 Beam(s)
- SICK WSO16I Series Light Curtain Sender, 1 Beam(s)
- SICK WSO16P Series Light Curtain Sender, 1 Beam(s)