Sick WL12G-3B2531 Photoelectric Sensor
The Sick WL12G-3B2531 photoelectric sensor features 4 m sensing range, 25 mm light spot, PNP/NPN output, and IP69K protection for industrial detection. This WL12G-3B2531 Sick 25mm Light Spot Photo Sensor operates with visible red LED light, 640 nm wavelength, 1,500 Hz switching frequency, ≤ 330 µs response time, 10–30 V DC supply, metal zinc diecast housing, and M12 5-pin connector, available under Sick, categorized within Sick Photoelectric Sensors, and part of the W12 series for detecting transparent objects.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WL12G-3B2531 |
Sick WL12G-3B2531 Photoelectric Sensor – Technical Specifications
| Specification | Value |
|---|---|
| Functional principle | Photoelectric retro-reflective sensor |
| Functional principle detail | Autocollimation |
| Sensing range max. | 0 m ... 4 m |
| Sensing range | - |
| Polarisation filters | Yes |
| Light source | LED |
| Type of light | Visible red light |
| Light spot size (distance) | Ø 25 mm (1.5 m) |
| Wave length | 640 nm |
| Adjustment | Potentiometer, 11 turns |
| Angle of dispersion | Approx. 1.5° |
| Special applications | Detecting transparent objects |
| 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 | PNP, NPN |
| Switching mode | Light switching, Dark switching |
| Signal voltage PNP HIGH/LOW | > Uv - 3 V / ca. 0 V |
| Output current Imax. | ≤ 100 mA |
| Response time | ≤ 330 µs 4) |
| Switching frequency | 1,500 Hz 5) |
| Output function | - |
| Special feature | Detecting transparent objects |
| Housing | Rectangular |
| Dimensions (W x H x D) | 15.6 mm x 48.5 mm x 42 mm |
| Connection | Male connector M12, 5-pin |
| Housing material | Metal, zinc diecast |
| 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 | 120 g |
WL12G-3B2531 Sick 25mm Light Spot Photo Sensor refers to the Sick WL12G-3B2531 photoelectric sensor used in industrial automation applications. It provides 4 m sensing range, 25 mm light spot size, PNP/NPN digital output, and IP69K enclosure rating. This model belongs to the W12 series and operates using visible red LED light with autocollimation principle. Sick WL12G-3B2531 is designed for reliable detection, including transparent object sensing in industrial environments.
In industrial setups, the Sick WL12G-3B2531 photoelectric sensor is used in conveyor systems, packaging lines, assembly stations, and inspection processes. The sensor supports detection of transparent objects, improving reliability where standard sensors may fail. Its stable output signal ensures consistent performance, while the high switching frequency supports fast operations. The rugged metal housing and high protection rating allow operation in dusty, wet, and washdown environments.
The WL12G-3B2531 Sick 25mm Light Spot Photo Sensor, identified as Sick WL12G-3B2531, provides consistent sensing performance for industrial automation systems. With compact rectangular housing, durable zinc diecast construction, and wide operating temperature range, it fits multiple industrial conditions. As part of the W12 series, it aligns with similar models for compatibility and integration. Sick WL12G-3B2531 ensures stable detection performance for applications requiring accurate and repeatable sensing.
Related Products
