# Photoelectric Sensor, 2.5 m, NPN / PNP, Background Suppression, Proximity, 4 Pin M12 Connector

![Product image](https://novapart.co/image/farnell:4398726/)

**URL**: https://novapart.co/products/WT24-2B420S14/photoelectric-sensor-25-m-npn-pnp-background
**SKU**: WT24-2B420S14
**Manufacturer**: SICK
**Price**: €376.8300
**Stock**: 10+
**Lead Time**: 36 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 | 2.5m |
| Sensor Output Type | NPN / PNP |
| Supply Voltage Dc Max | 30V |
| Supply Voltage Dc Min | 10V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4398726/)

WT24-2B420S14 W24 

**COMPACT PHOTOELECTRIC SENSORS** 

**WT24-2B420S14 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|WT24-2B420S14|1023363|
|Other models and accessories<br> www.sick.com/W24||



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## 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 ... 2,500 mm1)|
|**Sensing range**|100 mm ... 2,500 mm1)|
|**Type of light**|Infrared light|
|**Light source**|LED2)|
|**Light spot size (distance)**|Ø 80 mm (2,500 mm)|
|**Adjustment**|Potentiometer|
|**Special features**|Sensing range preset: 2300 mm (90 % reflectance)<br>Front lense made of glass|



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)|



- 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** 

**WT24-2B420S14 | W24** COMPACT PHOTOELECTRIC SENSORS 

|**Switching output**|NPN, PNP|
|---|---|
|**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)|
|**Time functions**|On delayoff delay|
|**Delay time**|Adjustable via time delay selector switch, 0.6 s ... 1.3 s|
|**Connection type**|Male connector M12, 4-pin|
|**Circuit protection**|A6)<br>C7)<br>D8)|
|**Protection class**|II9)|
|**Weight**|350 g|
|**Special device**|✔|
|**Housing material**|Metal, zinc diecast|
|**Optics material**|Glass, glass|
|**Enclosure rating**|IP67|
|**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**|621 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|



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

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**WT24-2B420S14 | W24** COMPACT PHOTOELECTRIC SENSORS 

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



Adjustments 

H 8( t2 ~~@~~ A D ila t1 NPN | t1t0 t2 PNP @" t1+ t2 |, 3 ~~a°~~ ② LED signal strength indicator ⑩ Adjustment of sensing range ⑪ Light/dark selector 

⑫ NPN/PNP changeover switch 

⑬ Time control t2= OFF delay 

⑭ Time control t1= ON delay 

⑮ Time delay selector switch 

## Connection type 

## Connection diagram 

Cd-117 

BN 1 + (L+) WH 2 Test BU 3 **-** (M) BK 4 Q/ 

**4 PHOTOELECTRIC SENSORS | SICK** 

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

**WT24-2B420S14 | W24** COMPACT PHOTOELECTRIC SENSORS 

## Characteristic curve 

WT24-2, infrared light 

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10<br>8<br>6<br>6%/90%<br>4 1 18%/90%<br>2<br>90%/90%<br>2<br>3<br>0<br>mm 500 1000 1500 2000 2500 3000<br>(inch) (19.69) (39.37) (59.06) (78.74) (98.43) (118.11)<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 

## Sensing range diagram 

WT24-2, infrared light 

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� 30 1,300<br>� 30 1,800<br>� 30 2,500<br>0 400 800 1,200 1,600 2,000 2,400 2,800<br>(15.75) (31.5) (47.24) (62.99) (78.74) (94.49) (110.24)<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 

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

**PHOTOELECTRIC SENSORS | SICK** 

**5** 

**WT24-2B420S14 | W24** COMPACT PHOTOELECTRIC SENSORS 

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

WT24-2 

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9<br>10 7<br>(0.39)<br>| w e 14 17.5<br>(0.55) (0.69)<br>1<br>2 es<br>3 4<br>5<br>— a 6 /<br>8<br>9 M5<br>11.8<br>30 (1.18) (0.46)<br>27 65 (2.56)<br>(1.06)<br>①   Alignment sight<br>②   LED signal strength indicator<br>③   Standard direction of the material being detected<br>④   Center of optical axis, sender<br>⑤   Center of optical axis, receiver (close range)<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>


- 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° 

## Recommended accessories 

||**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||||
|Ye|• **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-<br>050VB3XLEAX|2096235|
|®,|• **Connection type head A:**Male connector, M12, 4-pin, straight<br>• **Description:**Unshielded<br>• **Connection systems:**Screw-type terminals<br>• **Permitted cross-section:**≤ 0.75 mm²|STE-1204-G|6009932|



**6 PHOTOELECTRIC SENSORS | SICK** 

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

## 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/WT24-2B420S14/photoelectric-sensor-25-m-npn-pnp-background)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/sick/wt24-2b420s14/photoelectric-sensor-2-5m-npn/dp/4398726)
---

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