The SICK WTB2S-2N3160 (part number 1064611) is a compact photoelectric proximity sensor engineered for precise object detection in demanding automation environments. Its ultra-slim housing—just 7.7 mm wide, 21.8 mm high, and 13.5 mm deep—makes it an excellent choice for applications where installation space is at a premium, such as assembly machines, packaging lines, and robotics.

This model incorporates a visible red PinPoint LED, which produces a sharply defined, high-intensity light spot. This feature allows operators to align the sensor with exceptional accuracy, speeding up commissioning and ensuring consistent detection performance. The LED’s visibility also makes troubleshooting straightforward, adding to operational efficiency.

A key strength of the WTB2S-2N3160 lies in its background suppression technology. The sensor can reliably detect objects within a working range of 15 mm to 120 mm, and can extend its reach to 150 mm on reflective surfaces. This versatility enables it to handle a wide range of object materials, shapes, and colors, even in environments where background interference is present.

The sensor’s performance is tailored for high-speed operations. With a response time under 0.5 milliseconds and a switching frequency of up to 1 kHz, it provides extremely fast detection, ideal for rapid production lines and small part monitoring. The NPN light-switching output, rated for up to 50 mA, ensures reliable integration with control systems, making it suitable for automation engineers who prefer NPN logic configurations.

From an electrical standpoint, the sensor operates on a 10–30 V DC supply with a typical power consumption of just 20 mA. To ensure long-term reliability, it includes protection against reverse polarity, short circuits, and overload conditions. These safeguards help extend service life and prevent downtime due to electrical faults.

The WTB2S-2N3160 is also built to withstand harsh industrial conditions. Its IP67-rated enclosure offers complete dust-tight sealing and resistance to water ingress, while the ABS/PC housing and PMMA optical components provide mechanical robustness and durability. This ensures consistent performance even in challenging factory or warehouse environments.

For installation, the sensor comes with a 2-meter, 3-wire PVC cable. The slim 3 mm diameter and 0.09 mm² conductor cross-section allow for easy cable routing, even in compact or crowded machine layouts.

In summary, the SICK WTB2S-2N3160 offers a combination of compact design, extended detection range, fast response, and rugged protection, making it an excellent choice for system integrators, OEMs, and automation professionals who require precise, reliable, and space-saving sensors.