The Allen-Bradley 871C-D15B30 NSNBC01 Photo Switch IO Module is a compact optical sensor designed to detect the presence of objects and feed a signal into a Rockwell Automation PLC. As part of the 871C family, the NSNBC01 configuration denotes a specific photo switch setup intended for straightforward integration with Allen-Bradley control systems on automation lines. Typical applications include non-contact object detection on conveyors and part presence sensing on assembly lines, providing reliable digital input signals to PLCs in manufacturing and packaging environments.
