The SICK WTB2S-2N1175 (part number 1064621) is a compact photoelectric sensor designed for precision object detection in space-restricted automation environments. Measuring only 7.7 mm wide, 21.8 mm high, and 13.5 mm deep, the sensor’s small footprint allows it to be installed in machines, conveyors, or robotic systems where space is limited but reliable sensing is essential.

Equipped with SICK’s PinPoint LED technology, the WTB2S-2N1175 projects a bright, sharply focused red light spot. This feature simplifies alignment during installation and ensures consistent detection accuracy during operation. The visible light spot also makes troubleshooting and visual confirmation of detection straightforward, minimizing downtime and improving usability in the field.

This model specializes in short-range background suppression, making it particularly effective for tasks requiring precise detection of small or closely spaced objects. It operates in a detection range from 5 mm to 70 mm, with the ability to extend up to 75 mm on reflective targets. This controlled background suppression eliminates false triggers from shiny surfaces or nearby objects, ensuring highly reliable performance in applications such as assembly line part verification, electronic component detection, and packaging processes.

The sensor is built for speed as well as accuracy. With a fast response time of less than 0.5 milliseconds and a switching frequency up to 1 kHz, the WTB2S-2N1175 can easily handle rapid production environments. Its NPN light-switching output, rated for up to 50 mA, provides dependable interfacing with automation controllers and logic systems that require sinking outputs.

Electrical design further enhances its reliability. The unit operates on a 10–30 V DC supply while consuming only about 20 mA, making it energy-efficient and cost-effective. Integrated safeguards against reverse polarity, overload, and short circuits ensure stable, trouble-free operation over its lifespan, even under demanding conditions.

In addition, the sensor features a rugged IP67-rated housing made from durable ABS/PC with PMMA optics. This construction guarantees protection against dust ingress and temporary water immersion, allowing the sensor to withstand tough environments common in manufacturing, logistics, and electronics assembly.

The WTB2S-2N1175 comes with a 2-meter, 3-wire PVC cable featuring a slim 3 mm diameter for easy installation. Its flexibility allows smooth integration into compact wiring layouts without sacrificing mechanical durability.

In summary, the SICK WTB2S-2N1175 offers an ideal balance of compact size, precise short-range detection, fast NPN switching output, and robust protection. It is particularly suited for engineers and system integrators looking for a reliable sensing solution in high-precision, close-range industrial automation tasks.