Sick WL12-3P2451 Photoelectric Sensor

The WL12-3P2451 is a 2 mm Light Spot Retro-reflective Sensor from Sick, a trusted global brand in industrial automation and sensing technology. Known for its advanced optical engineering and reliability, Sick Photoelectric Sensors deliver precise and consistent detection for a wide range of machine automation applications. The WL12-3P2451 is designed for engineers and system integrators who require accurate sensing performance in compact spaces with stable operation under challenging industrial conditions.

The Sick WL12-3P2451 operates on a 10 V DC to 30 V DC power supply and uses a visible red LED (640 nm) with a fine 2 mm light spot at 90 mm distance, offering pinpoint accuracy for small-object detection. Based on the autocollimation retro-reflective principle with a built-in polarization filter, it ensures reliable detection up to a 1.3 m sensing range (maximum 2 m) even for shiny or transparent surfaces. The sensor includes a complementary PNP output with both light and dark switching, providing flexibility in signal integration. It features a fast response time of 330 µs and a high switching frequency of 1,500 Hz, making it ideal for rapid automation and packaging processes. The 5-turn potentiometer allows precise adjustment of detection sensitivity, and its metal housing ensures excellent durability in demanding environments. Built with an IP66, IP67, and IP69K-rated enclosure, it provides protection against dust, water, and high-pressure cleaning, making the WL12-3P2451 Photo Sensor suitable for heavy-duty and hygienic applications. Its compact 15.6 × 48.5 × 42 mm form factor, along with an M12 4-pin connector, simplifies installation and ensures long-term operational reliability.

The Sick WL12-3P2451 2 mm Light Spot Retro-reflective Sensor is widely used in packaging lines, small parts detection, material handling, assembly automation, and robotics. Its fine, focused light spot enables precise sensing of small components, even on reflective or transparent surfaces such as glass bottles, plastic films, or polished metals. Maintenance engineers appreciate the WL12-3P2451 for its easy alignment, adjustable sensitivity, and dependable performance in both low and high-speed operations. This sensor is also ideal for industries requiring high hygiene standards, such as food, beverage, and pharmaceutical manufacturing, due to its corrosion-resistant metal housing and sealed design. The combination of high optical precision, mechanical strength, and advanced electronics makes the Sick WL12-3P2451 a dependable choice for machine builders seeking accuracy and consistency in automated systems.

For detailed documentation, the Sick WL12-3P2451 comes with a comprehensive WL12-3P2451 datasheet and WL12-3P2451 manual covering setup, wiring, and calibration guidelines. Engineers evaluating WL12-3P2451 price options will find it an excellent investment considering its precision optics, rugged build quality, and long service life. The Sick WL12-3P2451 2 mm Light Spot Retro-reflective Sensor continues to set industry standards for reliable detection, offering unmatched performance in compact automation environments.