SICK Retroreflective Photoelectric Sensor Block Sensor 20 mm to 350 mm Detection Range, PNP Output, IP69K WTB12-3P1131

The SICK WTB12-3P1131 retroreflective Photoelectric Sensor is a block-style sensor designed for industrial automation environments requiring sturdy, reliable object detection solutions. Featuring a detection range of 20 mm to 350 mm, this sensor utilizes a retro-reflective detection method with a LED light source, ensuring stable and accurate sensing performance.

Encased in a metal housing and rated to IP69K, the sensor is highly durable, allowing it to withstand high pressure and high-temperature washdown cleaning processes typical in demanding industrial and manufacturing settings. Its temperature operating range spans from -40°C to 60°C, accommodating harsh environmental conditions.

The sensor outputs a PNP signal type, simplifying integration into various control systems. It supports a maximum DC voltage of 30 V and carries a maximum current of up to 100 mA, minimizing load on power supply lines. Furthermore, the rapid response time of 330 μs enables quick cycle times for processes such as conveyor presence detection, packaging machinery, assembly line object sensing, and level detection scenarios where retroreflective targets are used.

This product meets stringent international standards and approvals, including ACMA, CHINA-RoHS, cULus, Ecolab, EN IEC 63000, and Photobiological safety per DIN EN 62471, ensuring reliable and safe deployment in various global markets.

The sensor’s integral cable termination facilitates direct connection to plant wiring without additional terminal blocks, aiding straightforward installation in panel mounts or machinery.

Applications include use in conveyor presence detection where fast switching is critical, packaging machinery requiring sensors resistant to washdown procedures, assembly lines demanding precise object detection, and manufacturing processes involving level measurement with retro-reflective targets.

This sensor has a metal housing for exceptional durability in corrosive environments. The IP69K ingress protection rating allows resistant washing with high-pressure and high-temperature water. LED light source promotes stable and consistent sensor illumination.

PNP output type enables easy integration with industrial control systems. Detection distance from 20 mm up to 350 mm suitable for varied sensing applications. The sensor operates reliably in temperatures between -40°C and 60°C.

Response time of 330 μs supports rapid automation cycles. Complies with key international standards for safety and performance. Explore SICK products for a range of industrial sensors and automation components on EnvMart to enhance your control and detection systems.