Allen-Bradley 871C-D8R18 Inductive Proximity Sensor

The Allen-Bradley 871C-D8R18 is a cylindrical inductive proximity sensor with an 18 mm diameter housing designed for noncontact detection of metal targets in automation and manufacturing environments. Built as a DC-powered device in the 871C family, it typically features a plastic face and plastic barrel that help keep the profile compact while resisting routine worksite exposure. Used for end-of-travel sensing, position feedback, and conveyor line control, this sensor provides reliable metal detection without contact, reducing wear on moving parts and simplifying maintenance compared with mechanical switches. Configurations within the 871C family offer various termination and wiring options to fit different control architectures; for the exact sensing distance, electrical supply, and output type of the 871C-D8R18, refer to Rockwell Automation’s official datasheet matched to your configuration. Typical industries include packaging, material handling, automotive assembly, and general manufacturing where reliable metal presence detection improves cycle control and safety interfaces.