The LJ30A3 series inductive proximity switch (model LJ30A315ZCY shown) is a compact, reliable metalcased M30 approach sensor designed for noncontact detection of metal targets. Available in detection distances of 10 mm and 15 mm and in NPN or PNP output styles with normally open (NO) or normally closed (NC) contact options, this sensor offers flexible integration for industrial automation and machinery control. Key benefits Noncontact detection reduces mechanical wear and maintenance compared with mechanical switches. Metal M30 housing provides robust mounting and longterm durability in industrial environments. Multiple output and contact configurations (NPN/PNP, NO/NC) let you match the sensor to different control systems without extra adapters. Two detection distance choices (10 mm and 15 mm) allow selection based on required sensing range and space constraints. Simple cylindrical M30 form factor fits standard threaded mounting and common sensor brackets for quick installation. Key attributes Functionality: Inductive proximity sensing for reliable detection of metallic objects without physical contact. Size and mounting: M30 threaded cylindrical housing for easy mechanical integration. Material: Metal housing for enhanced durability and mechanical protection. Performance: Detects metal targets at either 10 mm or 15 mm depending on the model; LJ30A315ZCY denotes the 15 mm variant. Output and switching: Available in NPN or PNP transistor outputs and in normally open (NO) or normally closed (NC) wiring configurations to suit a wide range of control inputs. Model: LJ30A3 series; the specific listed model is LJ30A315ZCY. Typical applications Conveyor object detection: Noncontact sensing of passing metal parts or containers to trigger sorting, counting, or indexing without wearprone mechanical switches. Machine position sensing: Reliable detection of metal fixtures, tooling, or machine slide positions for automation feedback, interlocks, and cycle control. Presence sensing in assembly lines: Repeatable detection of metallic components during assembly, packaging, or inspection processes where space and robustness are critical. Compatibility and selection tips Choose the 10 mm or 15 mm detection distance based on the maximum distance between the sensor face and the target in your application. Select NPN or PNP output and NO or NC switching to match your PLC, relay, or control input wiring conventions. The M30 metal housing is compatible with standard M30 mounting clamps and brackets commonly used in industrial panels and machine frames. This LJ30A3 series inductive proximity switch combines a rugged metal M30 design with flexible output and sensingdistance options to provide reliable, lowmaintenance metal detection for a wide range of industrial automation tasks.