6034875 datasheet(2/6 Pages) SICK

2 / 6 page

L21S-21MA1A, L21E-21MA1A | L21

SINGLE-BEAM PHOTOELECTRIC SAFETY SWITCHES

Ordering information

System part

Type

Part no.

Sender

L21S-21MA1A

6034874

Receiver

L21E-21MA1A

6034875

Other models and accessories

www.sick.com/L21

Detailed technical data

Features

Scanning range

0 m ... 10 m

Number of beams

Optical axis

Axial

Safety-related parameters

Type

Type 2 (IEC 61496) 1)

Safety integrity level

SIL1 (IEC 61508) 1)

SILCL1 (EN 62061) 1)

Category

Category 2 (EN ISO 13849) 1)

Test rate (external test)

100 /s (EN ISO 13849) 2)

Maximum demand rate

≤ 60

min⁻¹ (EN ISO 13849) 3)

Performance level

PL c (EN ISO 13849) 1)

PFHD (mean probability of a dangerous fail-

ure per hour)

1.0 x 10-6 (EN ISO 13849) 1)

TM (mission time)

20 years (EN ISO 13849)

1) Only in combination with an appropriate test device, e.g., Flexi Classic or Flexi Soft.

2) The test rate shall not be exceeded.

3) Between two requirements on a safety-related response of the device, at least 100 internal or external tests must be carried out.

Interfaces

Connection type

Male connector M12, 4-pin, straight

Fieldbus, industrial network

Integration via Flexi Soft safety controller CANopen, DeviceNet™, EtherCAT®, EtherNet/IP™, Modbus TCP, PROFIBUS DP, PROFINET 1)

1) For additional information on Flexi Soft -> www.sick.com/Flexi_Soft.

Electrical data

Sender

Receiver

Protection class

III (EN 50178)

Supply voltage VS

24 V DC (19.2 V DC ... 28.8 V DC)

1) Short-circuit protected.

OPTO-ELECTRONIC PROTECTIVE DEVICES | SICK

Online data sheet | 2017-09-01 12:26:26

Subject to change without notice

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