Turck BI15-K40SR-FZ3X2 Inductive Proximity Sensor

The Turck BI15-K40SR-FZ3X2 Multi-Prox Inductive Proximity Sensor detects metallic objects without contact and provides reliable machine-position sensing in PLC-controlled automation systems. It features a smooth Ø40 mm barrel housing made of ABS plastic, a shielded inductive element with a 15 mm sensing distance, and a programmable switching function with 2-Wire AC/DC output (NO/NC). Power is universal across 20–250 VAC or 10–300 VDC, and the sensor supports a switching current of 3–400 mA. Installation is simplified by a terminal chamber with axial and radial cable-entry options, and the unit carries IP67 protection while operating from −25 °C to +70 °C; dual LEDs indicate sensing status. As part of the Multi-Prox K40SR series, it is commonly used for part presence detection, end-of-travel monitoring, machine positioning, and product verification in conveyors, packaging equipment, transfer lines, and other automated machinery, with common replacements including BI15-K40SR-FDZ30X2, BI15-K40SR-BZ3X, and NI20-K40SR-FZ3X2.