PY4-AN-3A Metal Sensing Proximity Switch Datasheet

This document specifies the technical parameters, mounting recommendations, and safety warnings for a metal sensing proximity switch (model PY4-AN-3A) with NPN normally open output and embeddable housing (M4). It details operating distance (1mm), voltage range (10-30 VDC), current limit (100 mA), and mandatory free zone requirements for reliable operation, while explicitly prohibiting use in safety-critical applications.