# Photoelectric Sensor, 120mm, NPN, Background Suppression/Proximity, 10 to 30VDC, 4 Pin M8 Connector

![Product image](https://novapart.co/image/farnell:4384971/)

**URL**: https://novapart.co/products/WTB4S-3N2232/photoelectric-sensor-120mm-npn-background
**SKU**: WTB4S-3N2232
**Manufacturer**: SICK
**Price**: €146.1300
**Stock**: 10+
**Lead Time**: 36 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Product Range | W4 Series |
| Sensing Method | Background Suppression, Proximity |
| Connection Method | 4 Pin M8 Connector |
| Sensing Range Max | 120mm |
| Sensor Output Type | NPN |
| Supply Voltage Dc Max | 30V |
| Supply Voltage Dc Min | 10V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4384971/)

WTB4S-3N2232 W4 

**MINIATURE PHOTOELECTRIC SENSORS** 

**WTB4S-3N2232 | W4** MINIATURE PHOTOELECTRIC SENSORS 

## Ordering information 

|**Type**|**Part no.**|
|---|---|
|WTB4S-3N2232|1051872|
|Other models and accessories<br> www.sick.com/W4<br>|||



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


## Detailed technical data 

## Features 

|**Functional principle**|Photoelectric proximity sensor|
|---|---|
|**Functional principle detail**|Background suppression|
|**Sensing range max.**|4 mm ... 120 mm1)|
|**Sensing range**|10 mm ... 120 mm1)|
|**Emitted beam**||
|Light source|PinPoint LED2)|
|Type of light|Visible red light|
|Light spot size (distance)|Ø 2.5 mm (50 mm)|
|**Key LED figures**||
|Wave length|650 nm|
|**Adjustment**|Single teach-in button|



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

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

## Safety-related parameters 

|**MTTFD**|1,231 years|
|---|---|
|**DCavg**|0 %|
|**TM (mission time)**|20 years|



**Product data sheet | 2024-03-28 20:00:12 Subject to change without notice** 

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**PHOTOELECTRIC SENSORS | SICK** 

**WTB4S-3N2232 | W4** MINIATURE PHOTOELECTRIC SENSORS 

## Electrical data 

|**Supply voltage UB**|10 V DC ... 30 V DC1)|
|---|---|
|**Ripple**|< 5 Vpp 2)|
|**Current consumption**|20 mA3)|
|**Protection class**|III|
|**Digital output**||
|Type|NPN|
|Switching mode|Light/dark switching|
|Output current Imax.|≤ 100 mA|
|Response time|< 0.5 ms4)|
|Switching frequency|1,000 Hz5)|
|**Output function**|Complementary|
|**Circuit protection**|A6)<br>C7)<br>D8)|



1) Limit values. 

- 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|
|---|---|
|**Design detail**|Slim|
|**Dimensions (W x H x D)**|12.2 mm x 41.8 mm x 17.3 mm|
|**Connection**|Male connector M8, 4-pin|
|**Material**||
|Housing|Plastic, ABS|
|Front screen|Plastic, PMMA|
|**Weight**|30 g|
|Ambient data||
|**Enclosure rating**|IP67<br>IP66|
|**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**|27270904|
|---|---|
|**ECLASS 5.1.4**|27270904|
|**ECLASS 6.0**|27270904|
|**ECLASS 6.2**|27270904|



**2024-03-28 20:00:12 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**WTB4S-3N2232 | W4** MINIATURE PHOTOELECTRIC SENSORS 

|**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**|27270903|
|**ETIM 5.0**|EC002719|
|**ETIM 6.0**|EC002719|
|**ETIM 7.0**|EC002719|
|**ETIM 8.0**|EC002719|
|**UNSPSC 16.0901**|39121528|



## Connection type 

## Connection diagram 

Cd-083 

BN 1 ~~<—-~~ + (L+) WH 2 Q ~~~—~~ BU 3 ! **-** (M) BK 4 ~~—>—_1-~~ Q 

**4** 

**Product data sheet | 2024-03-28 20:00:12 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**WTB4S-3N2232 | W4** MINIATURE PHOTOELECTRIC SENSORS 

## Characteristic curve 

## WTB4S-3, 120 mm 

% of sensing distance 

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30<br>25<br>20<br>15<br>10<br>5<br>0<br>mm 20 40 60 80 100 120<br>(inch) (0.79) (1.57) (2.36) (3.15) (3.94) (4.72)<br>Distance in mm (inch)<br>①   Sensing range on black, 6% remission factor<br>②   Sensing range on gray, 18% remission factor<br>③   Sensing range on white, 90% remission factor<br>**----- End of picture text -----**<br>


## Light spot size 

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Diameter in mm (inch)<br>Ø 6 Ø 2,5 Ø 7.6 Ø 10<br>(0.24) (0.1) (0.30) (0.39)<br>0 50 100 120<br>(1.97) (3.94) (4.72)<br>Distance in mm (inch)<br>Sensor<br>**----- End of picture text -----**<br>


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**PHOTOELECTRIC SENSORS | SICK** 

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**WTB4S-3N2232 | W4** MINIATURE PHOTOELECTRIC SENSORS 

## Sensing range diagram 

WTB4S-3, 120 mm 

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**----- Start of picture text -----**<br>
4 10 120<br>4 10 120<br>0 as<br>4 10 120<br> @ as a<br>0 20 40 60 80 100 120<br>(0.79) (1.57) (2.36) (3.15) (3.94) (4.72)<br>Distance in mm (inch)<br>| Sensing range max. Sensing range<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 

Dimensional drawing (Dimensions in mm (inch)) 

WTB4S-3, Single teach-in button 

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12.2<br>(0.48) 17.3 (0.68)<br>_. —<br>3<br>1<br>oS i.<br>2<br>|<br>i s<br>7<br>8<br>| =<br>M8 2.7<br>(0.11) 12 (0.47)<br>5 4<br>6<br>10.97.7 0.430.30)()( 291.14)(<br>12.8 0.50)(<br>**----- End of picture text -----**<br>


- ① Standard direction of the material being detected 

- ② Optical axis, receiver 

- ③ Optical axis, sender 

- ④ LED indicator green: Supply voltage active 

- ⑤ LED indicator yellow: Status of received light beam 

- ⑥ Teach-in button 

- ⑦ Threaded mounting hole M3 

- ⑧ Connection 

**6** 

**Product data sheet | 2024-03-28 20:00:12 Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**WTB4S-3N2232 | W4** MINIATURE PHOTOELECTRIC SENSORS 

## Recommended accessories 

> Other models and accessories > www.sick.com/W4 

||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Mounting brackets and plates||||
||Mounting bracket for wall mounting, Stainless steel 1.4571, mounting hardware includ-|BEF-W4-A|2051628|
||ed|||
|Plug connectors and cables||||
||• **Connection type head A:**Female connector, M8, 4-pin, straight, A-coded|YF8U14-|2095889|
||• **Connection type head B:**Flying leads|050VA3XLEAX||
||• **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, M8, 4-pin, straight|STE-0804-G|6037323|
|gun|• **Description:**Unshielded|||
||• **Connection systems:**Screw-type terminals|||
||• **Permitted cross-section:**0.14 mm² ... 0.5 mm²|||



**2024-03-28 20:00:12 | 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/WTB4S-3N2232/photoelectric-sensor-120mm-npn-background)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/sick/wtb4s-3n2232/photoelectric-sensor-120mm-npn/dp/4384971)
---

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