Balluff BNS-819-D03-R12-100-10 Mechanical Position Switch

The Balluff BNS 819-D03-R12-100-10 mechanical position switch (order code BNS00EW) is a three-position roller-type limit switch designed for robust cam‑driven position sensing in automation. It mounts vertically with a long/flat approach direction parallel to the mounting surface, uses screw-terminal connections, and resides in an aluminum, anodized housing measuring 120 x 80 x 83 mm with IP67 protection. The unit provides dual changeover contacts (one NO and one NC per position) across three switching positions, rated for up to 250 V AC and 6 A continuous current, and it supports a maximum cam‑to‑reference edge spacing of 4.5–5.0 mm and a switching rate up to 300/min. Its actuation is via a stainless steel plunger (BSE 30.0) with an actuation force around 20 N, and it tolerates operating temperatures from -5 to 85 °C. The cam-driven mechanism accommodates an approach speed of up to 60 m/min and features two flange exits rated for M25 threading, with a switching life up to about 30 million cycles. This model aligns with DIN switch standards (DIN 43697) and is part of Balluff’s mechanical position switch family, commonly used for end-of-travel and position detection in conveyors, presses, and automated machinery.