Balluff BES 517-398-NO-L Proximity Switch

Balluff BES 517-398-NO-L is an inductive proximity switch designed for non-contact sensing of metal targets in automation equipment. It operates on 10–30 V DC and provides a three‑wire, PNP normally open (NO) output, enabling straightforward wiring to typical PLCs and controllers. The NO‑L variant offers a 2 mm sensing range and a 3 m cable length, making it suitable for compact installations and flexible mounting in tight spaces. As part of Balluff’s BES 517‑398 family, this sensor is commonly used for metal-target detection in automated lines and machine tools, where reliable, repeatable switching is required for position sensing and presence checks. Its inductive sensing principle delivers fast response with no moving parts, contributing to durable operation in industrial control applications.