L21E-21MA1A

L21E-21MA1A L21 

**SAFETY SINGLE-BEAM SENSORS** 

**L21E-21MA1A | L21** SAFETY SINGLE-BEAM SENSORS 

## Ordering information 

|**Scanning**<br>**range**|**Model**|**Housing**<br>**material**|**System part**|**Type**|**Part no.**|
|---|---|---|---|---|---|
|16 m|M18 axial|Nickel-plat-<br>ed brass|Receiver|L21E-21MA1A|6034875|



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## Detailed technical data 

## Features 

|**Scanning range**|16 m|
|---|---|
|**Number of beams**|1|
|**Optical axis**|Axial|
|**Response time**|0.2 ms|
|**Response time**|0.2 ms + Test device response time|



## Safety-related parameters 

|**Type**|Type 2 (IEC 61496-1)1)|
|---|---|
|**Safety integrity level**|SIL 1 (IEC 61508)1)|
|**Category**|Category 2 (EN ISO 13849)1)|
|**Test rate (external test)**|100 /s (EN ISO 13849)2)|
|**Maximum demand rate**|≤ 60min⁻¹(EN ISO 13849)3)|
|**Performance level**|PL c (EN ISO 13849)1)|
|**PFHD (mean probability of a dangerous fail-**|1.0 x 10-6(EN ISO 13849)1)|
|**ure per hour)**||
|**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|
|---|---|
|Electrical data||
|**Protection class**|III (IEC 61140)|
|**Supply voltage VS**|24 V DC (19.2 V DC ... 28.8 V DC)|
|**Power consumption**|≤ 30 mA|



## Electrical data 

- 1) Short-circuit protected. 

**Product data sheet | 2024-04-09 16:51:17 Subject to change without notice** 

**2 SAFETY LIGHT-BEAM SENSORS | SICK** 

**L21E-21MA1A | L21** SAFETY SINGLE-BEAM SENSORS 

|**Switching outputs**|PNP, Q1)|
|---|---|
|**Current loading**|≤ 70 mA|



1) Short-circuit protected. 

## Mechanical data 

|**Design**|Cylindrical|
|---|---|
|**Dimensions (diameter x length)**|M18 x 97.7 mm|
|**Housing material**|Nickel-plated brass|
|**Lens material**|Glass|
|**Weight**|67 g|
|Ambient data||
|**Enclosure rating**|IP67 (EN 60529)|
|**Ambient operating temperature**|–40 °C ... +55 °C|
|**Storage temperature**|–40 °C ... +75 °C|
|**Air humidity**|15 % ... 95 %, Non-condensing|
|**Vibration resistance**|5 g, 10 Hz ... 55 Hz (IEC 60068-2-6)|
|**Shock resistance**|10 g, 16 ms (IEC 60068-2-29)|
|Other information||
|**Aperture angle/receiving angle**|± 5° / ± 5°|
|Classifications||
|**ECLASS 5.0**|27272701|
|**ECLASS 5.1.4**|27272701|
|**ECLASS 6.0**|27272701|
|**ECLASS 6.2**|27272701|
|**ECLASS 7.0**|27272701|
|**ECLASS 8.0**|27272701|
|**ECLASS 8.1**|27272701|
|**ECLASS 9.0**|27272701|
|**ECLASS 10.0**|27272701|
|**ECLASS 11.0**|27272701|
|**ECLASS 12.0**|27272701|
|**ETIM 5.0**|EC001831|
|**ETIM 6.0**|EC001831|
|**ETIM 7.0**|EC001831|
|**ETIM 8.0**|EC001831|
|**UNSPSC 16.0901**|46171620|



**2024-04-09 16:51:17 | Product data sheet Subject to change without notice** 

**SAFETY LIGHT-BEAM SENSORS | SICK** 

**3** 

**L21E-21MA1A | L21** SAFETY SINGLE-BEAM SENSORS 

## Dimensional drawing (Dimensions in mm (inch)) 

M18, axial, straight 

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97.7 (3.85)<br>7 17.6 15.6<br>(0.28) 57.5 (2.26) (0.69) (0.61)<br>45°<br>7 LED<br>M18 x 1 M12 x 1 Ø 16.4 0.65)(<br>**----- End of picture text -----**<br>


## Recommended accessories 

Other models and accessories www.sick.com/L21 

||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Plug connectors and cables||||
||• **Connection type head A:**Female connector, M12, 4-pin, straight, A-coded<br>• **Connection type head B:**Flying leads<br>• **Signal type:**Sensor/actuator cable<br>• **Cable:**5 m, 4-wire, PVC<br>• **Description:**Sensor/actuator cable, unshielded<br>• **Application:**Zones with chemicals|YF2A14-050VB3XLEAX|2096235|
|he|• **Connection type head A:**Female connector, M12, 4-pin, angled, A-coded<br>• **Connection type head B:**Flying leads<br>• **Signal type:**Sensor/actuator cable<br>• **Cable:**5 m, 4-wire, PVC<br>• **Description:**Sensor/actuator cable, unshielded<br>• **Application:**Zones with chemicals|YG2A14-050VB3XLEAX|2095897|
|Y,|• **Connection type head A:**Female connector, M12, 4-pin, straight<br>• **Description:**Unshielded, Head A: female connector, M12, 4-pin, straight, unshield-<br>ed, for power supply, for cable diameter 4 mm ... 6 mm Head B: -<br>• **Connection systems:**Screw-type terminals<br>• **Permitted cross-section:**≤ 0.75 mm²|DOS-1204-G|6007302|
||• **Connection type head A:**Female connector, M12, 4-pin, angled<br>• **Description:**Unshielded, Head A: female connector, M12, 4-pin, angled, unshield-<br>ed, for power supply, for cable diameter 3 mm ... 6.5 mm Head B: -<br>• **Connection systems:**Screw-type terminals<br>• **Permitted cross-section:**≤ 0.75 mm²|DOS-1204-W|6007303|



**4** 

**Product data sheet | 2024-04-09 16:51:17 Subject to change without notice** 

**SAFETY LIGHT-BEAM SENSORS | SICK** 

## SICK At A GlAnCe 

SICK is one of the leading manufacturers of intelligent sensors and sensor solutions for industrial applications. A unique range of products and services creates the perfect basis for controlling processes securely and efficiently, protecting individuals from accidents and preventing damage to the environment. 

We have extensive experience in a wide range of industries and understand their processes and requirements. With intelligent sensors, we can deliver exactly what our customers need. In application centers in Europe, Asia and North America, system solutions are tested and optimized in accordance with customer specifications. All this makes us a reliable supplier and development partner. 

Comprehensive services complete our offering: SICK lifetime Services provide support throughout the machine life cycle and ensure safety and productivity. 

For us, that is “Sensor Intelligence.” 

## WOrldWIde preSenCe: 

Contacts and other locations www.sick.com 

SICK AG | Waldkirch | Germany | www.sick.com