# Photoelectric Sensor, 4m, NPN/PNP, Autocollimation/Retroreflective, 30VDC, 5 Pin M12 Connector

![Product image](https://novapart.co/image/farnell:4391426/)

**URL**: https://novapart.co/products/WL12G-3B2531T01/photoelectric-sensor-4m-npn-pnp-autocollimation
**SKU**: WL12G-3B2531T01
**Manufacturer**: SICK
**Price**: €225.1000
**Stock**: 10+
**Lead Time**: 57 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Product Range | W12 Series |
| Sensing Method | Autocollimation, Retroreflective |
| Connection Method | 5 Pin M12 Connector |
| Sensing Range Max | 4m |
| Sensor Output Type | NPN / PNP |
| Supply Voltage Dc Max | 30V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4391426/)

WL12G-3B2531T01 W12 Teflon 

**SMALL PHOTOELECTRIC SENSORS** 

**WL12G-3B2531T01 | W12 Teflon** SMALL PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|WL12G-3B2531T01|1041458|
|Other models and accessories<br> www.sick.com/W12_Teflon<br>ad||



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Illustration may differ<br>**----- End of picture text -----**<br>


## Detailed technical data 

## Features 

|**Functional principle**|Photoelectric retro-reflective sensor|
|---|---|
|**Functional principle detail**|Autocollimation|
|**Sensing range max.**|0 m ... 4 m1)|
|**Polarisation filters**|Yes|
|**Emitted beam**<br>Light source<br>Type of light<br>Light spot size (distance)|LED2)<br>Visible red light<br>Ø 25 mm (1.5 m)|
|**Key LED figures**<br>Wave length|640 nm|
|**Adjustment**|Potentiometer, 11 turns|
|**Angle of dispersion**|Approx. 1.5°|
|**Special applications**|Hygienic and washdown zones, Detecting transparent objects|
|**AutoAdapt**|✔|



- 1) Reflector PL80A. 

2) Average service life: 100,000 h at TU = +25 °C. 

## Safety-related parameters 

|**MTTFD**|823 years|
|---|---|
|**DCavg**|0 %|



**Product data sheet | 2024-04-12 18:08:36 Subject to change without notice** 

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**PHOTOELECTRIC SENSORS | SICK** 

**WL12G-3B2531T01 | W12 Teflon** SMALL PHOTOELECTRIC SENSORS 

## Electrical data 

|**Supply voltage UB**|≤ 30 V DC1)|
|---|---|
|**Ripple**|< 5 Vpp 2)|
|**Current consumption**|30 mA3)|
|**Protection class**|III|
|**Digital output**||
|Type|PNPNPN|
|Switching mode|Light switching, Dark switching|
|Switching mode selector|Selectable via L/D control cable|
|Signal voltage PNP HIGH/LOW|> Uv - 3 V / ca. 0 V|
|Output current Imax.|≤ 100 mA|
|Response time|≤ 330 µs4)|
|Switching frequency|1,500 Hz5)|
|**Circuit protection**|A6)<br>C7)<br>D8)|



- 1) Limit values when operated in short-circuit protected network: max. 8 A. 

2) May not exceed or fall below Uv tolerances. 

3) Without load. 

4) Signal transit time with resistive load. 

5) With light/dark ratio 1:1. 

- 6) A = VS connections reverse-polarity protected. 

- 7) C = interference suppression. 

- 8) D = outputs overcurrent and short-circuit protected. 

## Mechanical data 

|**Housing**|Rectangular|
|---|---|
|**Dimensions (W x H x D)**|15.6 mm x 48.5 mm x 42 mm|
|**Connection**|Male connector M12, 5-pin|
|**Material**||
|Housing|PTFE coating|
|**Weight**|120 g|



## Ambient data 

|**Enclosure rating**|IP66<br>IP67<br>IP69K|
|---|---|
|**Ambient operating temperature**|–40 °C ... +60 °C|
|**Ambient temperature, storage**|–40 °C ... +75 °C|
|**UL File No.**|NRKH.E181493 & NRKH7.E181493|



## Classifications 

|**ECLASS 5.0**|27270902|
|---|---|
|**ECLASS 5.1.4**|27270902|
|**ECLASS 6.0**|27270902|
|**ECLASS 6.2**|27270902|



**2024-04-12 18:08:36 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

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**WL12G-3B2531T01 | W12 Teflon** SMALL PHOTOELECTRIC SENSORS 

|**ECLASS 7.0**|27270902|
|---|---|
|**ECLASS 8.0**|27270902|
|**ECLASS 8.1**|27270902|
|**ECLASS 9.0**|27270902|
|**ECLASS 10.0**|27270902|
|**ECLASS 11.0**|27270902|
|**ECLASS 12.0**|27270902|
|**ETIM 5.0**|EC002717|
|**ETIM 6.0**|EC002717|
|**ETIM 7.0**|EC002717|
|**ETIM 8.0**|EC002717|
|**UNSPSC 16.0901**|39121528|



Adjustments 

WL12-3, WSE12-3 

② LED indicator yellow: Status of received light beam 

③ LED indicator green: Supply voltage active 

⑥ Sensitivity control: potentiometer 

Connection type 

**4** 

**Product data sheet | 2024-04-12 18:08:36 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**WL12G-3B2531T01 | W12 Teflon** SMALL PHOTOELECTRIC SENSORS 

## Connection diagram 

## Cd-145 

BN 1 + (L+) WH 2 QNPN BU 3 **-** (M) BK 4 QPNP GY 5 L/D 

## Light spot size 

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**----- Start of picture text -----**<br>
17.5 43.0<br>(0.69) (1.69)<br>11.5 33.0 65.0<br>(0.45) (1.30) (2.56)<br>500 2,000 4,000<br>(19.69) (78.74) (157.48)<br>1,000 3,000<br>(39.37) (118.11)<br>Distance<br>All dimensions in mm (inch)<br>Sensor<br>**----- End of picture text -----**<br>


Sensing range diagram 

WL12G-3 

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**----- Start of picture text -----**<br>
� 0 4.0<br>� 0 4.0<br>� 0 3.0<br>� 0 3.5<br>� 0 3.5<br>� 0 3.0<br>� 0 1.8<br>� 0 0.6<br>0 1.0 2.0 3.0 4.0<br>(3.28) (6.56) (9.84) (13.12)<br>Distance in m (feet)<br>**----- End of picture text -----**<br>


Sensing range max. 

- ① Reflector PL80A 

- ② Reflector C110A 

- ③ Reflector P250F 

- ④ Reflector PL50A 

- ⑤ Reflector PL40A 

- ⑥ Reflector PL30A 

- ⑦ Reflector PL20A 

- ⑧ Reflective tape REF-IRF-56 

**2024-04-12 18:08:36 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**5** 

**WL12G-3B2531T01 | W12 Teflon** SMALL PHOTOELECTRIC SENSORS 

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

WL12-3, WSE12-3 

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24 (0.94) 10 (0.39)<br>4<br>42 (1.65)<br>15.6 (0.61) 29.9 (1.18)<br>5<br>12.9<br>1 (0.51)<br>7.3 (0.29) 6.1<br>(0.24)<br>ian<br>7 5<br>23.1<br>(0.91)<br>6<br>3<br>2<br>19.4<br>(0.76)<br>a<br>3.5<br>(0.14)<br>ø 4.2 (0.91)<br> (1.57)  (1.91)<br> (1.26) 39.9 48.5<br>32<br>5.1 0.2)(<br>**----- End of picture text -----**<br>


- ① Optical axis 

- ② LED indicator yellow: Status of received light beam 

- ③ LED indicator green: Supply voltage active 

- ④ M4 threaded mounting hole, 4 mm deep 

- ⑤ Mounting hole, Ø 4.2 mm 

- ⑥ Sensitivity control: potentiometer 

- ⑦ Connection 

## Recommended accessories 

||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Mounting brackets and plates||||
||Universal mounting bracket for reflectors, steel, zinc coated|BEF-WN-REFX|2064574|
|Reflectors||||
||Fine triple reflector, screw connection, suitable for laser sensors, 52 mm x 62 mm, PM-<br>MA/ABS, Screw-on, 2 hole mounting|P250F|5308843|



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**Product data sheet | 2024-04-12 18:08:36 Subject to change without notice** 

**PHOTOELECTRIC 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 



## Links

- [View this product on Novapart](https://novapart.co/products/WL12G-3B2531T01/photoelectric-sensor-4m-npn-pnp-autocollimation)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/sick/wl12g-3b2531t01/photoelectric-sensor-4m-npn-pnp/dp/4391426)
---

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