Allen-Bradley 871T-G5J18 Cylindrical Inductive Proximity Sensor

The Allen-Bradley 871T-G5J18 is a cylindrical, 18 mm-diameter inductive proximity sensor that detects metal targets at a 5 mm sensing distance. It features a threaded stainless-steel barrel with a plastic face and is shielded to resist electrical noise in harsh industrial environments. This two-wire AC device operates on 20–132 V AC and provides a normally open output, enabling straightforward switching of loads through standard AC control circuits. As a tubular 871T variant, it is designed for compact mounting in demanding machinery where space is at a premium. The device’s metal-detecting sensing principle allows contactless operation, making it well-suited for position sensing and presence detection on conveyors, machine frames, and other automation equipment. With its 5 mm sensing distance and 18 mm diameter, the sensor offers a compact, robust solution that combines durable stainless-steel construction with ease of installation in tough production settings.