Schneider Electric XU1N18NP341WD Proximity Sensor

Schneider Electric’s XU1N18NP341WD is a reflex photoelectric sensor in the XU1 family, designed for non-contact object detection in industrial automation. This cylindrical M18 sensor with a 90° lateral design uses infrared reflex emission to detect the presence and position of workpieces along packaging lines, conveyors, labeling machines, and automated handling systems, with a 4 m sensing distance and a 1 ms response time. It operates from a 12–24 V DC supply and provides a 3-wire NPN output (configurable as 1 NO or 1 NC) via a 4-pin M12 connector. The device features a stainless steel 304 housing and PMMA lens rated IP67 for robust performance in harsh environments, and offers up to 500 Hz switching frequency suitable for fast sequences. Certifications include CE, CSA, and UL. Common replacements include XU1N18PP341WD, XU2N18PP341D, and XU5N18PP340W, reflecting its compatibility within the Schneider Electric XU1 sensor family. Typical applications span packaging equipment, conveyor lines, assembly equipment, and material handling processes where reliable non-contact detection and counting are required.