# Photoelectric Sensor, 1.2 m, NPN / PNP, Background Suppression, Proximity, 4 Pin M12 Connector

![Product image](https://novapart.co/image/farnell:4398728/)

**URL**: https://novapart.co/products/WT24-2B440/photoelectric-sensor-12-m-npn-pnp-background
**SKU**: WT24-2B440
**Manufacturer**: SICK
**Price**: €300.9700
**Stock**: 10+
**Lead Time**: 43 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Product Range | W24 Series |
| Sensing Method | Background Suppression, Proximity |
| Connection Method | 4 Pin M12 Connector |
| Sensing Range Max | 1.2m |
| Sensor Output Type | NPN / PNP |
| Supply Voltage Dc Max | 30V |
| Supply Voltage Dc Min | 10V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4398728/)

WT24-2B440 W24 

**COMPACT PHOTOELECTRIC SENSORS** 

**WT24-2B440 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|WT24-2B440|1016934|
|Other models and accessories<br> www.sick.com/W24||



Illustration may differ 

## CE Ws 

## Detailed technical data 

## Features 

|**Functional principle**|Photoelectric proximity sensor|
|---|---|
|**Functional principle detail**|Background suppression|
|**Dimensions (W x H x D)**|27 mm x 87.5 mm x 65 mm|
|**Housing design (light emission)**|Rectangular|
|**Sensing range max.**|100 mm ... 1,200 mm1)|
|**Sensing range**|100 mm ... 1,200 mm1)|
|**Type of light**|Visible red light|
|**Light source**|LED2)|
|**Light spot size (distance)**|Ø 40 mm (1,200 mm)|
|**Adjustment**|Potentiometer|



- 1) Object with 90% remission (based on standard white, DIN 5033). 

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

## Mechanics/electronics 

|**Supply voltage UB**|10 V DC ... 30 V DC1)|
|---|---|
|**Ripple**|< 5 Vpp 2)|
|**Current consumption**|50 mA3)|
|**Switching output**|NPN, PNP|



- 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. 

- 9) Reference voltage: 50 V DC. 

**Product data sheet | 2024-04-11 10:42:04 Subject to change without notice** 

**2 PHOTOELECTRIC SENSORS | SICK** 

**WT24-2B440 | W24** COMPACT PHOTOELECTRIC SENSORS 

|**Switching mode**|Light/dark switching|
|---|---|
|**Switching mode selector**|Selectable via PNP/NPN selector, selectable via light/dark selector|
|**Output current Imax.**|≤ 100 mA|
|**Response time**|≤ 500 µs4)|
|**Switching frequency**|1,000 Hz5)|
|**Connection type**|Male connector M12, 4-pin|
|**Circuit protection**|A6)<br>C7)<br>D8)|
|**Protection class**|II9)|
|**Weight**|330 g|
|**Housing material**|Metal, zinc diecast|
|**Optics material**|Plastic, PMMA|
|**Enclosure rating**|IP69K|
|**Test input sender off**|TE to 0 V|
|**Ambient operating temperature**|–40 °C ... +60 °C|
|**Ambient temperature, storage**|–40 °C ... +75 °C|



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. 9) Reference voltage: 50 V DC. 

## Safety-related parameters 

|**MTTFD**|776 years|
|---|---|
|**DCavg**|0 %|



## Classifications 

|**ECLASS 5.0**|27270904|
|---|---|
|**ECLASS 5.1.4**|27270904|
|**ECLASS 6.0**|27270904|
|**ECLASS 6.2**|27270904|
|**ECLASS 7.0**|27270904|
|**ECLASS 8.0**|27270904|
|**ECLASS 8.1**|27270904|
|**ECLASS 9.0**|27270904|
|**ECLASS 10.0**|27270904|
|**ECLASS 11.0**|27270904|
|**ECLASS 12.0**|27270904|
|**ETIM 5.0**|EC002719|
|**ETIM 6.0**|EC002719|



**2024-04-11 10:42:04 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**WT24-2B440 | W24** COMPACT PHOTOELECTRIC SENSORS 

|**ETIM 7.0**|EC002719|
|---|---|
|**ETIM 8.0**|EC002719|
|**UNSPSC 16.0901**|39121528|



## Connection type 

Connection diagram 

Cd-117 

BN 1 ~~+~~ + (L+) ~~~~~~ WH 2 Test BU 3 **-** (M) ~~—-~~ BK 4 ~~>—+=~~ Q/ :—«0 

## Characteristic curve 

WT24-2, red light 

**==> picture [203 x 212] intentionally omitted <==**

**----- Start of picture text -----**<br>
10<br>PPP pe<br>8<br>6<br>6%/90%<br>1 18%/90%<br>4 Sh 2 pepe<br>90%/90%<br>2 AA 3<br>aaa nt<br>maT<br>0<br>mm 200 400 600 800 1000 1200 1400<br>(inch) (7.87) (15.75) (23.62) (61.50) (39.37) (47.24) (55.12)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


- ① Sensing range on black, 6% remission factor 

- ② Sensing range on gray, 18% remission factor 

- ③ Sensing range on white, 90% remission factor 

**4** 

**Product data sheet | 2024-04-11 10:42:04 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**WT24-2B440 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Sensing range diagram 

WT24-2, red light 

**==> picture [201 x 76] intentionally omitted <==**

**----- Start of picture text -----**<br>
� 50 600<br>� 50 900<br>� 50 1,200<br>0 200 400 600 800 1,000 1,200<br>(7.87) (15.75) (23.62) (31.5) (39.4) (47.24)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


Sensing range 

- ① Sensing range on black, 6% remission factor 

- ② Sensing range on gray, 18% remission factor 

- ③ Sensing range on white, 90% remission factor 

Dimensional drawing (Dimensions in mm (inch)) 

WT24-2 

**==> picture [238 x 235] intentionally omitted <==**

**----- Start of picture text -----**<br>
9<br>10 7<br>(0.39)<br>14 17.5<br>(0.55) (0.69)<br>1<br>2<br>3 4<br>5<br>6<br>8<br>9 M5<br>11.8<br>30 (1.18) (0.46)<br>27 65 (2.56)<br>(1.06)<br>14 0.55)(<br>14,4 (0.57) )<br>6.5 0.26(<br>)<br>15 0.59)( 2.40)( 87.53.44(<br>61<br>4.7<br>26 (0.19)<br>(1.02)<br>(1.26)<br>max. 32<br>**----- End of picture text -----**<br>


- ① Alignment sight 

- ② LED signal strength indicator 

- ③ Standard direction of the material being detected 

- ④ Center of optical axis, sender 

- ⑤ Center of optical axis, receiver (close range) 

- ⑥ Center of optical axis, receiver (far range) 

- ⑦ M5 threaded mounting hole, 6 mm deep 

- ⑧ M5 threaded mounting hole, through-hole 

- ⑨ M16 screw fixing and plug rotatable by 90° 

**2024-04-11 10:42:04 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**5** 

**WT24-2B440 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Recommended accessories 

> Other models and accessories > www.sick.com/W24 

||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Mounting brackets and plates||||
||Mounting bracket, large, stainless steel, without mounting hardware for the sensor|BEF-WG-W24|4026324|
|Plug connectors and cables||||
||• **Connection type head A:**Female connector, M12, 4-pin, straight, A-coded|YF2A14-|2096235|
||• **Connection type head B:**Flying leads|050VB3XLEAX||
||• **Signal type:**Sensor/actuator cable|||
||• **Cable:**5 m, 4-wire, PVC|||
||• **Description:**Sensor/actuator cable, unshielded|||
||• **Application:**Zones with chemicals|||
||• **Connection type head A:**Male connector, M12, 4-pin, straight|STE-1204-G|6009932|
|Sa|• **Description:**Unshielded|||
|ns|• **Connection systems:**Screw-type terminals|||
||• **Permitted cross-section:**≤ 0.75 mm²|||



**6** 

**Product data sheet | 2024-04-11 10:42:04 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/WT24-2B440/photoelectric-sensor-12-m-npn-pnp-background)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/sick/wt24-2b440/photoelectric-sensor-1-2m-npn/dp/4398728)
---

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