Allen-Bradley 871TM-BBN18-A2 Inductive Proximity Sensor

The Allen‑Bradley 871TM‑BBN18‑A2 Inductive Proximity Sensor is a long‑range, metal‑detecting sensor from Rockwell Automation’s 871TM family that operates without physical contact to detect metallic targets. This 18 mm variant is designed for compact installation in automated machinery and conveyors, providing reliable sensing in industrial environments where a non‑contact switch is preferred. The 871TM lineup is built to accommodate a range of connection options and output configurations, enabling integration with common PLCs and control systems. As a member of the 871TM family, this model supports standard applications such as end‑of‑travel detection, position sensing on moving parts, and machine‑guarding interfaces where metal presence must be monitored without wear on mechanical components. The BBN18‑A2 designation identifies this specific 18 mm variant within the broader 871TM portfolio, helping users select the appropriate wiring or connection style for their control scheme.