Turck NI25U-CK40-AP6X2-B1141 Inductive Sensor

The Turck NI25U-CK40-AP6X2-B1141 Inductive Sensor delivers reliable non-contact metal object detection and position sensing in industrial automation. As part of the Uprox+ series, this rectangular block sensor operates from 10–30 VDC with a 3-wire DC configuration and a PNP normally open output, and it detects metal targets at a 25 mm sensing distance via an M12 connector. Built with glass fiber reinforced PBT and rated IP68, it is designed for harsh environments from -30°C to +85°C and supports non-flush / partially embeddable mounting with a switching frequency up to 250 Hz. Common applications include conveyors, packaging machines, material handling equipment, automotive assembly lines, and robotic cells where precise end-of-travel, position monitoring, or part detection is required. Key features include Factor 1 sensing for all metals, weld field immunity, short-circuit and reverse polarity protection, and an LED status indicator. For compatibility, common replacements include NI20U-CK40-AP6X2-H1141, NI30U-CK40-AP6X2-H1141, and BI30U-CK40-AP6X2-H1141.