Allen-Bradley 871TM-B10C30-A2 Proximity Sensor

The Allen-Bradley 871TM-B10C30-A2 is a 30 mm diameter metal-face inductive proximity sensor with a shielded tubular stainless-steel housing and a durable metal face designed for harsh industrial environments. It delivers a 10 mm nominal sensing distance, enabling reliable detection of metal targets without contact on machinery, conveyors, and automated equipment. As a 2-wire AC/DC device, it can be powered from common AC or DC control circuits, and it provides a normally closed (NC) output that simplifies wiring in fail-closed safety logic configurations. The rugged construction combines a stainless-steel tubing with a robust sensing face to resist mechanical wear and corrosion, making it suitable for installation in tight spaces where mounting clearance is limited. This model is part of Allen-Bradley’s 871TM family, which comprises metal-face inductive sensors designed for metal-to-metal sensing, with consistent performance across standard industrial cycles. Typical applications include detecting the presence of gears, shafts, fasteners, or other metal components as they pass through a machine loop, verifying end-of-travel positions, or serving as a non-contact limit switch in automated lines.