Allen-Bradley 871C-K5A18 Inductive Proximity Switch

Allen-Bradley 871C-K5A18 is a miniature tubular inductive proximity switch in Rockwell Automation’s 871C family, designed to detect metal objects without contact in tight spaces. It runs from a DC supply in the 10–30 V range and draws approximately 0.2 A, making it compatible with common 24 V control circuits used in automation and machine control. As part of the 871C lineup, it provides non-contact sensing that helps verify the presence or position of metal components, enabling reliable automation sequencing, conveyor monitoring, and tooling alignment in rugged industrial environments. The 871C-K5A18 variant is one of several model options within the 871C family designed to meet varied wiring and mounting needs while integrating with standard Allen-Bradley sensors and control systems.