# Photoelectric Sensor, 2 m, NAMUR, Background Suppression, 4 Pin M12 Connector, 5 to 15.5 VDC

![Product image](https://novapart.co/image/farnell:4398745/)

**URL**: https://novapart.co/products/WT24-2X400/photoelectric-sensor-2-m-namur-background
**SKU**: WT24-2X400
**Manufacturer**: SICK
**Price**: €598.6500
**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 | 2m |
| Sensor Output Type | NAMUR |
| Supply Voltage Dc Max | 15.5V |
| Supply Voltage Dc Min | 5V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4398745/)

WT24-2X400 W24 **COMPACT PHOTOELECTRIC SENSORS** 

**WT24-2X400 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|WT24-2X400|1040722|
|Other models and accessories<br> www.sick.com/W24||



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


## 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.**|40 mm ... 2,000 mm1)|
|**Sensing range**|100 mm ... 2,000 mm1)|
|**Type of light**|Infrared light|
|**Light source**|LED2)|
|**Light spot size (distance)**|Ø 50 mm (2,000 mm)|
|**Adjustment**|Potentiometer|
|**Special applications**|Explosive areas|



- 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**|5 V DC ... 15.5 V DC|
|---|---|
|**Ripple**|< 0.4 Vpp 1)|
|**Switching output**|NAMUR|



- 1) May not exceed or fall below Uv tolerances. 

- 2) Signal transit time with resistive load. 

- 3) With light/dark ratio 1:1. 

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

- 5) C = interference suppression. 

- 6) Reference voltage: 50 V DC. 

- 7) For connection to a separately certified intrinsically safe circuit only. 

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

**2** 

**PHOTOELECTRIC SENSORS | SICK** 

**WT24-2X400 | W24** COMPACT PHOTOELECTRIC SENSORS 

|**Switching mode**|Light switching|
|---|---|
|**Response time**|≤ 10 ms2)|
|**Switching frequency**|50 Hz3)|
|**Connection type**|Male connector M12, 4-pin|
|**Circuit protection**|A4)<br>C5)|
|**Protection class**|II6)|
|**Weight**|330 g|
|**Housing material**|Metal, zinc diecast|
|**Optics material**|Glass, glass|
|**Enclosure rating**|IP67|
|**Type approval certificate**|PTB 03 ATEX 2105|
|**Certificate (IECEx)**|IECEx PTB 14.0030|
|**ATEX marking**|Ex II 2G Ex ia op is IIC T4 Gb according to directive 2014/34/EU|
|**Ex area category**|2G|
|**Input voltage Ui max.**|≤ 15.5 V7)|
|**Input power Pi max.**|≤ 100 mW7)|
|**Input current Ii max.**|≤ 53 mA7)|
|**Internal capacitance Ci max.**|80 nF7)|
|**Internal inductance Li max.**|0 µH7)|
|**Ambient operating temperature**|–20 °C ... +60 °C|
|**Ambient temperature, storage**|–25 °C ... +70 °C|



1) May not exceed or fall below Uv tolerances. 

2) Signal transit time with resistive load. 

3) With light/dark ratio 1:1. 4) A = VS connections reverse-polarity protected. 5) C = interference suppression. 6) Reference voltage: 50 V DC. 7) For connection to a separately certified intrinsically safe circuit only. 

## Safety-related parameters 

|**MTTFD**|227 years|
|---|---|
|**DCavg**|0 %|
|**TM (mission time)**|20 years|



## 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|



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

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**WT24-2X400 | W24** COMPACT PHOTOELECTRIC SENSORS 

|**ECLASS 9.0**|27270904|
|---|---|
|**ECLASS 10.0**|27270904|
|**ECLASS 11.0**<br>**ECLASS 12.0**|27270904<br>27270903|
|**ETIM 5.0**|EC002719|
|**ETIM 6.0**|EC002719|
|**ETIM 7.0**|EC002719|
|**ETIM 8.0**|EC002719|
|**UNSPSC 16.0901**|39121528|



## Adjustments 

~~*~~ ② LED signal strength indicator ⑩ Adjustment of sensing range 

## Connection type 

## Connection diagram 

Cd-122 

|~~1~~||1|+8.2 V|
|---|---|---|---|
|~~2~~<br>3<br>~~4~~||2<br>3<br>4|0 V<br>0 V<br>not connected|



**4 PHOTOELECTRIC SENSORS | SICK** 

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

**WT24-2X400 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Characteristic curve 

## WT24-2 EX 

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250<br>200<br>1<br>150<br>100<br>50<br>0<br>mm 500 1000 1500 2000<br>(inch) (19.69) (39.37) (59.06) (78.74)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


Field of view ① Sensing range on black, 6% remission factor 

WT24-2 EX 

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**----- Start of picture text -----**<br>
15<br>6%/90% 18%/90%<br>10<br>90%/90%<br>5<br>0<br>mm 500 1000 1500 2000<br>(inch) (19.69) (39.37) (59.06) (78.74)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


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

**PHOTOELECTRIC SENSORS | SICK** 

**5** 

**WT24-2X400 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Sensing range diagram 

WT24-2 

**==> picture [201 x 86] intentionally omitted <==**

**----- Start of picture text -----**<br>
*) 900<br>*) 1500<br>CO_———<br>*) 2000<br>|S | |<br>0 500 1000 1500 2000<br>(19.69) (39.37) (59.06) (78.74)<br>Distance in mm (inch)<br>Sensing range<br>**----- End of picture text -----**<br>


- *)  Lower bound of detection area depending on the adjusted sensing distance (see blind zone curve) 

- 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 EX 

**==> picture [235 x 233] intentionally omitted <==**

**----- Start of picture text -----**<br>
7<br>o 14 il 17.5 y<br>(0.55) (0.69)<br>J<br>1<br>2 .<br>3 4<br>5<br>6<br>8<br>T AI<br>9 M5<br>11.8<br>30 (1.18) (0.46)<br>27 65 (2.56)<br>(1.06) is<br>14 0.55)(<br>)<br>6.5 0.26(<br>)<br>15 (0.59) ) 3.44(<br>2.40( 87.5<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° 

**6** 

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

**PHOTOELECTRIC SENSORS | SICK** 

**WT24-2X400 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Recommended accessories 

Other models and accessories www.sick.com/W24 

**Brief description Type Part no.** Mounting brackets and plates ~~a~~ Mounting bracket, large, stainless steel, without mounting hardware for the sensor BEF-WG-W24 4026324 ~~.~~ 

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

**PHOTOELECTRIC SENSORS | SICK** 

**7** 

## 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/WT24-2X400/photoelectric-sensor-2-m-namur-background)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/sick/wt24-2x400/photoelectric-sensor-2m-namur/dp/4398745)
---

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