Balluff BES03AR BES 516-325-G-S4-L Proximity Sensor

The Balluff BES03AR (BES 516-325-G-S4-L) is a compact inductive proximity sensor built for flush-mount installation in tight spaces. The cylindrical device measures Ø12 x 70 mm and uses an M12x1 housing with a 4-pin M12 connector. It provides a PNP normally open (NO) output and detects metal targets within a 4 mm range. It operates on 10–30 V DC and tolerates ambient temperatures from -25 to 70 C, with an IP67 ingress protection rating for dust and water exposure in harsh environments. The sensing surface is made from LCP, while the housing is brass, nickel-plated, ensuring durability in industrial settings. This BES03AR variant belongs to Balluff’s BES 516 family and is designed for straightforward integration with standard controllers and automation electronics that accept 10–30 VDC and NO sensing logic, making it suitable for compact mounting in panels, equipment housings, and machinery where a robust, low-profile inductive sensor is required.