The SICK WTB11-2N1131 (Part No. 1041379) is a compact photoelectric sensor with background suppression, designed for accurate object detection in industrial automation applications. Part of the WT11 series, this sensor offers reliable detection performance, fast response, and durable construction, making it ideal for packaging, material handling, and assembly line operations.

The sensor features a visible red LED light source combined with background suppression technology, allowing it to detect objects based on their position rather than surface reflectivity. This ensures reliable operation even in environments with shiny, reflective, or complex backgrounds, preventing false triggers and enhancing process efficiency.

The WTB11-2N1131 has a nominal sensing distance of 100 mm and an adjustable detection range from 30 mm to 200 mm. This flexible range allows for fine-tuning during installation, making the sensor adaptable to different objects and applications. Its short-range capability is particularly suitable for high-precision tasks where accurate detection of small components or close objects is required.

Equipped with a high-speed NPN switching output, the sensor provides rapid and precise detection signals, ensuring reliable communication with NPN logic control systems. Its fast response time supports high-speed automation processes, including conveyor monitoring, part positioning, and sorting operations. The combination of reliable background suppression and fast switching ensures minimal errors and consistent performance.

Mechanically, the WTB11-2N1131 is built in a compact, durable plastic housing with an IP67 rating, providing protection against dust and temporary water exposure. Its robust design ensures dependable operation in harsh industrial environments, while the compact form factor allows easy installation in tight spaces without compromising sensing performance.

The sensor operates with a 10–30 V DC power supply and incorporates reverse-polarity protection and short-circuit resistance, enhancing its durability and minimizing maintenance requirements. Standard industrial M12 connectors simplify wiring and integration with existing automation systems.

Applications for the WTB11-2N1131 include object detection on conveyors, packaging verification, part presence detection, and automated assembly line monitoring. Its combination of precise background suppression, adjustable range, and high-speed NPN switching output makes it a dependable solution for a variety of industrial automation tasks.

In summary, the SICK WTB11-2N1131 delivers accurate, reliable, and fast object detection in a compact, durable IP67-rated housing. With flexible sensing range, robust background suppression, and NPN switching output, it is a versatile sensor suited for modern industrial automation environments requiring precision and dependability.