Allen-Bradley 872C-N12NP18-D4 Proximity Sensor

Allen-Bradley 872C-N12NP18-D4 is an 18 mm diameter inductive proximity sensor with a 12 mm nominal sensing distance, designed for non-contact metal detection in automated equipment. It operates on a 3‑wire DC supply of 10–30 V, delivers a normally open, source (PNP) output, and uses a standard tubular chrome‑plated brass barrel with an unshielded sensing element. The device features a Micro Quick-Disconnect (DC) connection and typically a 5 m lead, enabling straightforward integration into control circuits. With its inductive sensing principle, the 872C‑N12NP18‑D4 is well-suited for position sensing, end-of-travel detection, and other metal-target measurements on conveyors and machinery.