The SICK WTB4S-3P3465V (Part No. 1046394) is a high-precision photoelectric proximity sensor engineered for reliable and accurate object detection in industrial automation environments. Utilizing advanced background suppression technology combined with a focused PinPoint red LED, the sensor ensures dependable detection of objects while filtering out reflections and variations from surrounding surfaces. This capability allows for consistent, repeatable operation even in fast-moving manufacturing or packaging applications.

One of the primary advantages of the WTB4S-3P3465V is its compact rectangular housing, which measures just 12.2 mm √ó 41.8 mm √ó 17.3 mm and weighs approximately 30 g. Its slim and lightweight design enables installation in confined spaces or high-density sensor arrays, such as conveyor systems, robotic cells, and automated packaging machines. Despite its small footprint, the sensor is constructed for industrial durability, ensuring long-term performance under challenging conditions.

The sensor features a PNP switching output with complementary light/dark switching, providing integration flexibility across a variety of control systems. With a fast response time of less than 0.5 ms and a switching frequency of up to 1 kHz, the WTB4S-3P3465V is capable of performing high-speed detection tasks reliably. It is particularly well-suited for fast conveyor lines, automated sorting systems, robotic handling operations, and other applications where precise timing and accuracy are critical.

Durability is enhanced by the sensor’s robust design, which operates on a 10–30 V DC supply and includes protection against reverse polarity, short circuits, and electrical interference. Its IP66/IP67-rated housing provides strong resistance to dust, dirt, and water exposure, making it suitable for harsh industrial environments or washdown-prone areas. Additionally, it maintains consistent operation across a temperature range from –40 °C to +60 °C, allowing it to function effectively in both cold storage facilities and high-temperature manufacturing zones.

For precision, the sensor projects a narrow 2.5 mm light spot at 50 mm distance, enabling it to detect small or thin objects with high accuracy. The integrated LED has an estimated service life of approximately 100,000 hours under normal operating conditions, minimizing maintenance and supporting long-term operational efficiency.