# Photoelectric Sensor, 300 mm, NPN, Background Suppression, Proximity, Cable, 10 to 30 VDC

![Product image](https://novapart.co/image/farnell:4398773/)

**URL**: https://novapart.co/products/WTB250-2N1131/photoelectric-sensor-300-mm-npn-background
**SKU**: WTB250-2N1131
**Manufacturer**: SICK
**Price**: €180.5800
**Stock**: 10+
**Lead Time**: 43 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | No SVHC (21-Jan-2025) |
| Product Range | W250-2 Series |
| Sensing Method | Background Suppression, Proximity |
| Connection Method | Cable |
| Sensing Range Max | 300mm |
| Sensor Output Type | NPN |
| Supply Voltage Dc Max | 30V |
| Supply Voltage Dc Min | 10V |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4398773/)

WTB250-2N1131 W250-2 **COMPACT PHOTOELECTRIC SENSORS** 

**WTB250-2N1131 | W250-2** COMPACT PHOTOELECTRIC SENSORS 

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Ordering information<br>Type<br>WTB250-2N1131<br>Included in delivery:   BEF-W250 (1)<br>Other models and accessories<br>1 lili...<br>**----- End of picture text -----**<br>


**Type Part no.** WTB250-2N1131 6044672 **Included in delivery:** BEF-W250 (1) Other models and accessories www.sick.com/W250-2 

Illustration may differ 

## C€ cSAkis 

Detailed technical data 

Features 

|**Functional principle**|Photoelectric proximity sensor|
|---|---|
|**Functional principle detail**|Background suppression|
|**Dimensions (W x H x D)**|20 mm x 65 mm x 43.9 mm|
|**Housing design (light emission)**|Rectangular|
|**Sensing range max.**|100 mm ... 300 mm1)|
|**Sensing range**|100 mm ... 300 mm1)|
|**Focus**|Approx. 3°|
|**Type of light**|Visible red light|
|**Light source**|LED2)|
|**Light spot size (distance)**|Ø 30 mm (300 mm)|
|**Angle of dispersion**|Approx. 3°|
|**Adjustment**|Potentiometer, 2 turns3)|
||Potentiometer, 2 rotations|



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

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

- 3) With position indicator. 

**Product data sheet | 2024-01-29 15:56:16 Subject to change without notice** 

**2** 

**PHOTOELECTRIC SENSORS | SICK** 

**WTB250-2N1131 | W250-2** COMPACT PHOTOELECTRIC SENSORS 

## Mechanics/electronics 

|**Supply voltage UB**|10 V DC ... 30 V DC1)|
|---|---|
|**Ripple**|< 5 Vpp 2)|
|**Current consumption**|35 mA3)|
|**Switching output**|NPN|
|**Switching mode**|Light/dark switching|
|**Switching mode selector**|Selectable via L/D control cable|
|**Output current Imax.**|≤ 100 mA|
|**Response time**|≤ 3 ms4)|
|**Switching frequency**|160 Hz5)|
|**Connection type**|Cable, 4-wire, 2 m6)|
|**Cable material**|PVC|
|**Conductor cross section**|0.18 mm²|
|**Cable diameter**|Ø 3.8 mm|
|**Circuit protection**|A7)<br>B8)<br>C9)<br>D10)|
|**Protection class**|III|
|**Weight**|150 g|
|**Housing material**|Plastic, ABS|
|**Optics material**|Plastic, PMMA|
|**Enclosure rating**|IP67|
|**Items supplied**|BEF-W250 mounting bracket|
|**Electromagnetic compatibility (EMC)**|EN 60947-5-211)|
|**Ambient operating temperature**|–25 °C ... +55 °C|
|**Ambient temperature, storage**|–40 °C ... +70 °C|
|**UL File No.**|NRKH2.E300503 & NRKH8.E300503|



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) Do not bend below 0 °C. 7) A = VS connections reverse-polarity protected. 8) B = inputs and output reverse-polarity protected. 9) C = interference suppression. 10) D = outputs overcurrent and short-circuit protected. 11) The AC/DC devices comply with the Radio Safety Requirements for the industrial sector (Radio Safety Class A). They may cause radio interference if used in a residential area. 

## Safety-related parameters 

**MTTFD** 536 years **DCavg** 0 % 

**2024-01-29 15:56:16 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

**3** 

**WTB250-2N1131 | W250-2** COMPACT PHOTOELECTRIC SENSORS 

## Classifications 

|**eCl@ss 5.0**<br>~~|~~|27270904<br>|
|---|---|
|**eCl@ss 5.1.4**<br>~~|Pe~~|27270904<br>~~Pe~~|
|**eCl@ss 6.0**<br>~~Pe~~<br>~~I~~|27270904<br>~~Pe~~<br>~~I~~|
|**eCl@ss 6.2**<br>~~I~~<br>~~Me~~|27270904<br>~~I~~<br>~~Me~~|
|**eCl@ss 7.0**<br>~~Me~~<br>~~fe~~|27270904<br>~~Me~~<br>~~fe~~|
|**eCl@ss 8.0**<br>~~fe~~<br>~~Me~~|27270904<br>~~fe~~<br>~~Me~~|
|**eCl@ss 8.1**<br>~~Me~~<br>~~Me~~<br>~~|~~|27270904<br>~~Me~~<br>~~Me~~<br>|
|**eCl@ss 9.0**<br>~~Me~~<br>~~|—<—i~~|27270904<br>~~Me~~<br>~~—<—i~~|
|**eCl@ss 10.0**<br>~~|—<—i~~|27270904<br>~~—<—i~~|
|**eCl@ss 11.0**<br>~~—<—i~~|27270904<br>~~—<—iSs~~|
|**eCl@ss 12.0**<br>~~—<—i~~<br>~~Me~~|27270903<br>~~—<—i~~<br>~~Me~~|
|**ETIM 5.0**<br>~~Me~~<br>~~Me~~|EC002719<br>~~Me~~<br>~~Me~~|
|**ETIM 6.0**<br>~~Me~~<br>~~Pe~~|EC002719<br>~~Me~~<br>~~Pe~~|
|**ETIM 7.0**<br>~~Pe~~<br>~~I~~<br>~~—<—_~~|EC002719<br>~~Pe~~<br>~~I~~<br>~~—<—_~~<br>~~dur~~i‘~~aiit‘(<s;‘i:OC~~|
|**ETIM 8.0**<br>~~I~~<br>~~—<—_~~|EC002719<br>~~I~~<br>~~—<—_~~<br>~~dur~~i‘~~aiit‘(<s;‘i:OC~~|
|**UNSPSC 16.0901**<br>~~—<—_~~|39121528<br>~~—<—_~~<br>~~dur~~i‘~~aiit‘(<s;‘i:OC~~<br>~~a~~|



Adjustments WTB250-2 

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- ⑥ LED indicator green: Stability indicator 

- ⑦ LED indicator yellow: Status of received light beam 

- ⑧ Sensing range adjustment: potentiometer 

- ⑨ Position indicator for sensitivity setting (270°) 

## Connection diagram 

Cd-089 

BN + (L+) ~~——l_~~ BU **-** (M) BK Q : WH L/D 

**4 PHOTOELECTRIC SENSORS | SICK** 

**Product data sheet | 2024-01-29 15:56:16 Subject to change without notice** 

**WTB250-2N1131 | W250-2** COMPACT PHOTOELECTRIC SENSORS 

## Characteristic curve 

WTB250-2, 300 mm 

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**----- Start of picture text -----**<br>
% of sensing range<br>15<br>18% / 90%<br>10 �<br>6% / 90%<br>�<br>5<br>�<br>90% / 90%<br>0<br>0 100 200 300<br>(3.94) (7.87) (11.81)<br>Distance in mm (inch)<br>**----- End of picture text -----**<br>


- ① Sensing range on black, white background 

- ② Sensing range on gray, white background 

- ③ Sensing range on white, white background 

## Sensing range diagram 

WTB250-2, 300 mm 

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**----- Start of picture text -----**<br>
� 100 240<br>� 100 300<br>� 100 300<br>0 100 200 300<br>(3.94) (7.87) (11.81)<br>Distance in mm (inch)<br>Sensing range<br>**----- End of picture text -----**<br>


- ① Sensing range on black, white background 

- ② Sensing range on gray, white background 

- ③ Sensing range on white, white background 

**2024-01-29 15:56:16 | Product data sheet Subject to change without notice** 

**PHOTOELECTRIC SENSORS | SICK** 

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**WTB250-2N1131 | W250-2** COMPACT PHOTOELECTRIC SENSORS 

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

WTB250-2, DC, cable 

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24.7 (0.97)<br>43.9 (1.73)<br>20 (0.79) 39 (1.54)<br>4<br>= 6<br>2<br>1<br>3<br>5<br>ll<br>nal<br>①   Standard direction of the material being detected<br>②   Axis of sender<br>1.8 .07)(<br>1.42)(<br>36  (2.36)<br>26.6 (1.05)<br>60<br>17.4 (0.69) 18.6 (0.73)<br>**----- End of picture text -----**<br>


- ③ Axis of receiver 

- ④ Mounting hole ø 4.2 mm, for M4 hexagon nuts on both sides 

- ⑤ Connection cable 

## Recommended accessories 

Other models and accessories www.sick.com/W250-2 

||**Brief description**|**Type**|**Part no.**|
|---|---|---|---|
|Plug connectors and cables||||
|_-|Head A: male connector, M12, 4-pin, straight<br>Cable: unshielded|STE-1204-G|6009932|



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**Product data sheet | 2024-01-29 15:56:16 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/WTB250-2N1131/photoelectric-sensor-300-mm-npn-background)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/sick/wtb250-2n1131/photoelectric-sensor-300mm-npn/dp/4398773)
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