Balluff BES 516 325-G-E5-Y-S4 Proximity Sensor

Balluff BES 516-325-G-E5-Y-S4 is a shielded inductive proximity sensor in a cylindrical 12 mm diameter M12 housing with a 50 mm body length, designed for non-contact metal-detection in harsh industrial environments. It provides a 4 mm sensing distance (Sn 4 mm) with Sa (assured) operation from 0 to 3.2 mm, and offers a DC 3‑wire, PNP normally‑open output. The device operates on 10–30 VDC (rated operational voltage 24 VDC) and draws up to about 130 mA, with a max switching frequency of 600 Hz, and no‑load current typically in the low tens of milliamps. Its construction includes a nickel‑plated brass housing and PA12 sensing face, and it is rated IP67 for protection against dust and water ingress, suitable for use in humid or washdown settings. Electrical protections include short‑circuit protection and polarity reversal protection, with ripple up to 15% and robust performance across a wide ambient range of −25 to +70 °C. The M12 connector is a 4‑pin S4 configuration, providing reliable, field‑bus friendly wiring for automation lines where DIN rail or panel mounting is common. This Balluff sensor is ideal for end‑of‑stroke, presence/absence, or position sensing of ferrous and non‑ferrous metal targets in conveyors, presses, or automated assembly equipment, offering precise, repeatable switching without physical contact.