Turck BI5-G18-AZ3X-B3331 Inductive Proximity Sensor

The Turck BI5-G18-AZ3X-B3331 is an inductive proximity sensor that provides reliable, non-contact detection of metallic targets for position sensing and object feedback in industrial automation. Its 5 mm sensing distance, 2‑wire normally open output, and chrome‑plated brass M18 threaded housing (M18x1) support flush mounting in conveyors, packaging machines, assembly lines, and machine tools while withstanding tough manufacturing environments (IP67). It operates on AC or DC power (20–250 VAC / 10–300 VDC) with a maximum switching current of 100 mA and a 20 Hz switching frequency, enabling compatibility with PLC and relay‑controlled systems thanks to AC/DC universal operation and built‑in reverse polarity and short‑circuit protection. A status LED provides clear switching indication, and the -25°C to +70°C range covers typical industrial temperatures. This sensor is designed for reliable, contactless metal object detection in packaging equipment, transfer conveyors, and automation stations, with threaded barrel mounting that suits compact layouts. For compatibility, common replacements include Turck BI5-G18-AP6X-H1141, BI5-G18-AN6X-H1141, and BI5U-G18-AP6X-H1141.