Allen-Bradley 871C-D1NN5-E2 Inductive Proximity Sensor

The Allen-Bradley 871C-D1NN5-E2 is a compact, miniature tubular inductive proximity sensor with a 5 mm threaded barrel, built for tight spaces in industrial equipment. It detects metal targets at a nominal sensing distance of 1 mm and operates from a DC supply of 10 to 30 V, making it compatible with standard control circuits. This three-wire sensor features a normally open sinking output (NPN) and ships with a 2 m PVC cable for straightforward installation in machines, conveyors, or automation cells. Part of the 871C series, it adheres to EN 60947-5-2 safety standards and is designed for high-speed switching up to about 3 kHz, enabling reliable position sensing in fast automation tasks. Ideal applications include end-of-travel or limit sensing on compact actuators, inline metal-detection for process control, and replacement of larger mechanical sensors in space-constrained assemblies. The 871C-D1NN5-E2 configuration specifies a 1 mm sensing distance with a 5 mm diameter barrel and a durable threaded barrel format, delivering repeatable sensing performance in harsh manufacturing environments while maintaining easy wiring and integration with typical DC control circuits.