The SICK GTB2S-N5311 is a compact, high-performance photoelectric proximity sensor designed for short-range detection in modern automation environments. It employs advanced background suppression technology in combination with a PinPoint red LED to deliver reliable detection performance, even in conditions where reflective or variable surfaces are present. With a sensing range of 8 mm to 100 mm, the GTB2S-N5311 is particularly well-suited for applications requiring precise short-distance detection without interference from the background.

Physically, the sensor is designed for versatility in tight spaces. Measuring just 7.7 mm wide, 21.8 mm high, and 13.5 mm deep, it integrates easily into compact machines and conveyor systems. The enclosure is built from durable ABS housing with PMMA optics, ensuring long-term durability. Rated at IP67, the GTB2S-N5311 withstands dust and water exposure, making it a reliable choice even in challenging production environments.

In terms of performance, the GTB2S-N5311 is optimized for speed and accuracy. With a response time of less than 0.6 ms and a switching frequency of up to 800 Hz, it is capable of detecting fast-moving objects with precision. This performance makes it ideal for industries such as packaging, materials handling, and robotics, where high throughput and reliable detection are critical. The device features a PNP dark-switching output, enabling seamless integration with widely used automation controllers.

The sensor is built for simplicity and efficiency, featuring a fixed sensitivity setting that removes the need for manual calibration. This ensures consistent operation across different applications and reduces commissioning time. Operating from a 10–30 V DC supply voltage, with a low power consumption of about 20 mA, the GTB2S-N5311 offers both energy efficiency and dependable functionality.

Additionally, the sensor includes integrated protection features such as reverse polarity protection, short-circuit protection, and overcurrent protection. These safeguards extend service life and protect connected systems from electrical faults. With a Mean Time to Dangerous Failure (MTTF_D) greater than 3,000 years, the GTB2S-N5311 provides excellent long-term reliability.

In conclusion, the SICK GTB2S-N5311 delivers a powerful combination of compact design, stable detection, fast response, and robust protection features. It is the ideal sensor for applications requiring reliable short-range detection in limited spaces, such as conveyor automation, robotic handling, electronics assembly, and packaging systems.