The Allen-Bradley 871C-A5N18-A2 is a compact miniature inductive proximity sensor housed in an 18 mm barrel with a 5 mm nominal sensing distance, designed for non-contact metal detection in tight spaces. It operates on 20–250 VAC, provides a normally open output, and ships with a 2 m PVC cable for straightforward field wiring. This AC full-featured sensor is well suited for small-machine and automation-line applications where a rugged, maintenance-free switch is needed to detect metal targets without contact.
