The Allen-Bradley 871F-D70NP50-E2 is a flat-pack inductive proximity sensor from Rockwell Automation with a 70 mm sensing distance and a 50 mm head for metal-detection tasks in compact automation layouts. It uses a 3-wire DC configuration with a source (PNP) normally open output and a PVC jacketed 3-conductor cable, designed for flat or surface mounting in an unshielded package. Operating from 10–30 V DC, it supports standard 3-wire DC signaling and is specified as unshielded with a 50 mm head and 70 mm sensing field. Typical applications include detecting metal parts on conveyors or machine tools, end-of-travel or position sensing, and signaling to PLC inputs through a PNP NO output.
