Sick WSE12-3N1131 Photoelectric Sensor
Sick WSE12-3N1131 is a through-beam photoelectric sensor with 15 m sensing range and NPN output for industrial automation applications. This Sick photoelectric sensor from the W12 series uses visible red LED light at 640 nm, supports light/dark switching, delivers ≤330 µs response time, and operates on 10–30 V DC with IP66/IP67/IP69K protection.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WSE12-3N1131 |
Sick WSE12-3N1131 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Through-beam photoelectric sensor |
| Functional principle detail | - |
| Sensing range max. | 0 m ... 20 m |
| Sensing range | 0 m ... 15 m |
| Polarisation filters | - |
| Light source | LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 220 mm (15 m) |
| Wave length | 640 nm |
| Adjustment | Potentiometer, 5 turns |
| Angle of dispersion | Approx. 1.5° |
| Special applications | - |
| Items supplied | 2 x clamps BEF-KH-W12, incl. screws |
| Supply voltage UB | 10 V DC ... 30 V DC |
| Ripple | < 5 Vpp |
| Current consumption | ≤ 30 mA |
| Protection class | III |
| Digital Output type | NPN |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | Approx. VS / < 2.5 V |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 330 µs 4) |
| Switching frequency | 1,500 Hz 5) |
| Output function | Complementary |
| Special feature | - |
| Housing | Rectangular |
| Dimensions (W x H x D) | 15.6 mm x 48.5 mm x 42 mm |
| Connection | Cable, 4-wire, 2 m |
| Housing material | Metal |
| Front screen material | Plastic, PMMA |
| Enclosure rating | IP66, IP67, IP69K |
| Ambient operating temperature | –40 °C ... +60 °C |
| Ambient temperature, storage | –40 °C ... +75 °C |
| Weight | 200 g |
The WSE12-3N1131 Sick 15 m NPN Through-beam Sensor is a through-beam photoelectric sensor designed for long-distance object detection. This model provides 15 m sensing distance, NPN output, 330 µs response time, and visible red LED illumination. As part of the Sick W12 series, it is intended for industrial automation systems requiring stable and repeatable sensing over extended distances.
In conveyor lines, packaging equipment, automated material handling, and assembly systems, the WSE12-3N1131 Sick 15 m NPN Through-beam Sensor enables reliable object detection across wide gaps. The through-beam operating principle supports consistent detection of varying object shapes, while the fast switching frequency allows dependable performance in high-speed production environments.
The WSE12-3N1131 from Sick combines robust electrical characteristics with durable mechanical construction. Its metal housing, wide operating temperature range, and high enclosure ratings support continuous industrial use. Integrated within the W12 series, this Sick photoelectric sensor is suitable for automation applications requiring dependable long-range detection and predictable NPN switching behavior.
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