Balluff BES 515-356-E5-T-S4 Inductive Proximity Sensor

Balluff BES 515-356-E5-T-S4 (BES02FA) is a cylindrical inductive proximity sensor with a 12 mm diameter and 54.5 mm length, housed in a non-flush M12x1 configuration for easy panel mounting. It delivers a reliable sensing distance (Sn) of 4 mm to metal targets in non-contact applications, with an assured operating distance (Sa) of 0 to 3.2 mm and repeatability around 5%, and switches via a PNP normally-open output on a 3-wire, 10–30 V DC supply drawing about 130 mA. The device is unshielded and built for harsh environments, rated IP68 and operating from -40 to +105°C; the sensing face is PA12, the housing is 1.4571 stainless steel, and the connector is a 4-pin M12 (S4). Electrical performance includes a maximum switching frequency of about 400 Hz, a time delay before availability of roughly 10 ms, and DC13 utilization category; it is designed for quick, reliable metal-detection tasks in automation, with standard 3-wire wiring simplifying integration into common control circuits and a compact form factor suitable for machine bays where space is tight.