Sick WL12G-3O2431 Photoelectric Sensor
The Sick WL12G-3O2431 photoelectric sensor provides 4 m sensing range, 1,500 Hz switching frequency, and PNP output for industrial automation detection applications, while the Sick WL12G-3O2431, known as the Sick 1,500 Hz Retro-reflective Sensor, belongs to Sick photoelectric sensors and the W12 series, featuring autocollimation principle, polarisation filter, visible red LED light, 10–30 V DC supply, 330 µs response time, M12 4-pin connector, IP66/IP67/IP69K protection, and capability for detecting transparent objects.
| Brand | Sick |
| Product Type | Photolectric Sensor |
| Model Number | WL12G-3O2431 |
Sick WL12G-3O2431 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 |
| Switching mode | Light/dark switching |
| Signal voltage PNP HIGH/LOW | Approx. Uv / < 3 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, 4-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 |
The Sick WL12G-3O2431 photoelectric sensor, also referred to as the Sick 1,500 Hz Retro-reflective Sensor, is designed for accurate object detection in industrial automation systems. It offers a 4 m sensing range, 1,500 Hz switching frequency, and PNP output for stable signal transmission. As part of the W12 series, the Sick WL12G-3O2431 integrates autocollimation technology and polarisation filters, ensuring reliable detection even for transparent objects across industrial environments.
The Sick WL12G-3O2431 photoelectric sensor is used in conveyors, packaging lines, assembly systems, and material handling applications. Its retro-reflective principle supports consistent object detection over longer distances, reducing installation complexity. The sensor ensures stable switching output, enabling accurate control in automated processes. With its compact rectangular housing and M12 connector, the Sick WL12G-3O2431 fits easily into industrial setups requiring reliable detection and minimal maintenance.
The Sick WL12G-3O2431 photoelectric sensor combines stable detection performance with robust construction. With features like high switching frequency, extended sensing range, and IP69K enclosure protection, it supports continuous industrial operation. As part of the Sick W12 series, it aligns with standard automation requirements and ensures compatibility across systems. The Sick WL12G-3O2431 is suitable for applications that require dependable detection, consistent output, and durability in demanding industrial conditions.
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