Automation Direct PFK-AP-3H Inductive Proximity Sensor

Automation Direct PFK-AP-3H Inductive Proximity Sensor is a compact, tubular metal sensor designed for non-contact metal detection in tight spaces. The 18 mm diameter by 46 mm long body is machined from 316L stainless steel for durability in washdown and hygienic environments, and it mounts flush against surfaces. It operates from 10 to 30 V DC and provides a normally open PNP output via a 4-pin M12 quick-disconnect, enabling straightforward integration with standard PLC I/O. With an 8 mm sensing distance, it detects metal targets without physical contact, suitable for conveyors, tooling, and machine guarding where space is limited. The PFK-AP-3H is IP68 and IP69K rated, offering dust and high-pressure washdown protection. This model is positioned for food and beverage applications within AutomationDirect’s PFK family of DC inductive proximity sensors, combining corrosion resistance with reliable metal sensing in hygienic production lines. A switching frequency up to about 600 Hz supports fast feedback for dynamic automation tasks, while the 18 mm tubular form factor and M12 connector simplify installation and field replacement. Use cases include conveyor position sensing, end-of-arm tooling on robotic cells, and general metal-detection tasks in compact, washdown-ready automation cells where durability and fast response are required.