Allen-Bradley 871TM-B8C18-N3 Inductive Proximity Sensor

Allen-Bradley 871TM-B8C18-N3 is a metal-face inductive proximity sensor with an 18 mm diameter, built for rugged industrial environments and dependable metal-target sensing. It features a stainless-steel tubular housing with a metal sensing face, is unshielded, and delivers a nominal sensing distance of 8 mm, making it compact yet capable of detecting nearby metal surfaces. This two-wire AC/DC device operates over a wide supply range of 20–250 V and provides a normally closed (N.C.) output, aligning with common control-circuit interlock and simple-switching applications in automation lines. The B8C18-N3 variant belongs to Rockwell Automation’s 871TM family and is designed for straightforward mounting on equipment such as conveyors and presses where robust, non-contact metal sensing is required without sophisticated wiring.