Turck BI4-M12-AP6X Inductive Proximity Sensor

The Turck BI4-M12-AP6X inductive proximity sensor is a compact, non-contact metal object detection device for industrial automation, delivering a 4 mm sensing distance to reliably sense metallic targets in packaging lines, conveyors, assembly cells, machine tools, and automated production setups. With a 3-wire PNP normally open output and an operating range of 10–30 VDC, it sources up to 200 mA and switches at up to 2 kHz, making it suitable for PLC-controlled sensing tasks. Its M12 x 1 threaded barrel and integral cable support flush mounting in OEM machinery, while the chrome-plated brass housing and IP67 protection stand up to harsh factory environments from -25°C to +70°C. Built-in reverse polarity protection, short-circuit protection, and an increased switching distance enhance reliability, complemented by a yellow status LED that indicates switching activity. Common replacements include Turck BI4-M12-AP6X-H1141, BI4-M12K-AP6X-H1141, and BI4-M12T-AP6X-H1141 for retrofit or expansion projects. This sensor is ideal for packaging equipment, conveyors, robotic assembly cells, and other automatic production lines requiring robust, non-contact metal detection with precise position feedback.