Allen-Bradley 871TM-B3C12-A2 Temperature Monitor Module

Allen-Bradley 871TM-B3C12-A2 is a stainless-steel, metal-face inductive proximity sensor with a 12 mm diameter housing and a 3 mm sensing distance. This shielded, tubular device operates on a two-wire AC/DC supply and provides a normally closed output, simplifying wiring for simple fail-safe circuits in automation lines. Built for harsh industrial environments, its metal-face design and rugged stainless-steel body resist wear and support reliable sensing in washdown conditions and tough manufacturing settings. The compact form factor enables mounting in tight spaces along conveyors, at end-of-travel limits, or within machine guards where metal targets pass within the detection zone. Typical applications include part presence detection on feeders, end-of-line positioning on automation cells, and general metal-detection tasks on robotic or packaging lines, delivering non-contact sensing with a compact, durable sensor that integrates easily into existing 2-wire control schemes.