Allen-Bradley 871C-A2N12-N3 Inductive Proximity Sensor

The Allen-Bradley 871C-A2N12-N3 is a compact, shielded inductive proximity sensor (miniature barrel) from the 871C Series designed for non-contact detection of metal in tight spaces and commonly deployed on conveyors, packaging machinery, and automated assembly equipment. It features a 2 mm sensing distance, normally open (NO) output, and a 2-wire AC full-featured configuration with 20–250 V AC supply and 5–250 mA current rating; the 12 mm cylindrical threaded barrel uses a 3-pin mini quick disconnect for easy integration on conveyors, packaging lines, and automated assemblies. Manufactured by Allen-Bradley (Rockwell Automation) for replacement or retrofit in industrial environments, this sensor supports reliable metal detection and precise positioning where space is at a premium.