Schneider Electric XXV18B1NAM12 Proximity Sensor

Schneider Electric XXV18B1NAM12 is a cylindrical M18 ultrasonic proximity sensor from the OsiSense XXV family, designed for diffuse‑reflection detection with a nominal 50 mm sensing distance and an adjustable range from about 3 mm to 50 mm. It uses a 3‑wire NPN normally open output and is powered from 10 to 36 V DC (12–24 V typical) with reverse‑polarity protection, delivered via a 4‑pin M12 connector. The brass enclosure with an epoxy front meets IP67 protection, and the unit threads into machinery with M18 x 1 hardware. Its ultrasonic transducer operates at 360 kHz and features a 10° beam angle, a blind zone of 0–3 mm, and repeat accuracy around 1.5%, ensuring stable switching in dynamic environments. This general‑purpose sensor provides a reliable non‑contact detection solution for industrial automation tasks where compact size and robust sealing matter, making it suitable for presence sensing on production lines and equipment where a durable metal housing is advantageous.