Balluff BES M30ML-PSC20E-S04G-W Inductive Proximity Sensor

Balluff BES M30ML-PSC20E-S04G-W is a 30 mm-diameter, non-embedded inductive proximity sensor in the M30 form factor designed for reliable metal detection in automation environments. This unshielded, factor-1 sensor delivers a 20 mm rated switching distance (Sn) with a normally open (NO) PNP output, and it uses a 3-wire M12 connector (S04, 4 pins). The device operates on a broad supply range of 10–30 V DC (typical at 24 V), with a no-load current around 17 mA and a maximum load current of 200 mA; the static voltage drop is about 2.5 V, and it includes short-circuit and reverse-polarity protection for rugged machine use. Constructed with CuZn housing and PTFE coating, its sensing face is LCP + PTFE, and it carries an IP67 rating for protection against dust and water. The sensor measures 65 mm in total length with an M30x1.5 mounting thread; installation depth is about 65 mm, and mounting length is 50.5 mm, making it suitable for non-flush mounting in metal environments. Connector type is M12x1 with S04 4-pin configuration; switching function is normally-open with PNP output. Balluff’s M30ML family, including this Factor-1 variant, is commonly used for high-precision metal detection across automation applications where different metals must be reliably distinguished, such as conveyors, pick-and-place setups, and automated tooling.