Sick WL12-3P2431 Photoelectric Sensor

The Sick WL12-3P2431 Photoelectric Sensor is a premium retro-reflective sensor designed for high-speed object detection and precise automation control. Built by Sick, a trusted name in industrial sensing technology, this 7m Photoelectric Sensor offers reliable detection even in challenging production and material-handling environments.

The Sick WL12-3P2431 operates using autocollimation retro-reflective technology, providing accurate object detection up to 7 meters with strong background suppression. It features a visible red LED light (640 nm) and a polarisation filter that ensures precise sensing even with shiny or reflective surfaces. The light/dark switching mode with complementary output allows seamless integration into both PLC and relay-based systems. This sensor delivers exceptional response with a 330 µs switching time and 1,500 Hz switching frequency, ensuring consistent performance on fast conveyor lines. Its robust metal housing and PMMA front screen are engineered for durability, while the IP66/IP67/IP69K enclosure rating guarantees protection against dust, water jets, and high-pressure washdowns. Operating within a –40°C to +60°C temperature range, the WL12-3P2431 is suitable for both indoor and outdoor automation systems, offering long service life with minimal maintenance requirements. With its compact 15.6 × 48.5 × 42 mm design, 10–30 V DC supply voltage, and M12 4-pin connector, installation is quick, reliable, and universally compatible with industrial standards.

The WL12-3P2431 Photoelectric Sensor from Sick is widely used in packaging, assembly, logistics, and food processing applications. Its stable performance makes it ideal for detecting boxes, bottles, or metallic parts where precise distance sensing is crucial. Maintenance engineers and automation designers appreciate its quick alignment, consistent output signal, and immunity to vibration and ambient light. This model is also preferred in bottling and labeling machines due to its ability to detect transparent and reflective surfaces without false triggers. Overall, the Sick WL12-3P2431 Photoelectric Sensor offers outstanding reliability, repeatability, and operational efficiency, making it a trusted choice for automation professionals across multiple industries.

For technical documentation, users can refer to the Sick WL12-3P2431 datasheet and WL12-3P2431 manual for detailed wiring and installation information. The WL12-3P2431 price varies based on quantity and distributor location, but it remains one of the most cost-effective sensors in its performance class. With proven German engineering and strong field reliability, the Sick WL12-3P2431 continues to be a top choice for industrial engineers looking for long-term sensing accuracy and quality assurance.