Balluff BES M12MI-PSC40B-S04G Inductive Proximity Sensor

Balluff BES M12MI-PSC40B-S04G is a shielded, cylindrical inductive proximity sensor (M12 x 1) with a 4 mm nominal sensing distance (Sn) and flush-mount installation for metal surfaces. It operates from 12 to 30 V DC with a 3‑wire PNP normally-open (NO) output and uses an S4 (M12) connector; the housing is nickel-plated brass, the sensing face is PA12, and the unit carries an IP68 rating. Key electrical specs include Sn 4 mm, Sa 0…3.2 mm, max current 200 mA, ripple ≤ 15%, voltage drop ≤ 2.5 V, max switching frequency 500 Hz, no-load current typically 5–10 mA, with short-circuit and reverse-polarity protection. Mechanical data: Ø12 x 65 mm; ambient temperature −25 to +70°C; shock 30 g (half-sine), 11 ms; vibration 1 mm at 55 Hz, 3 × 30 minutes.