Balluff BNS-819-D04-D12-62-10-FD Limit Switch

Balluff BNS-819-D04-D12-62-10-FD is a mechanical multiple-position limit switch that integrates four independent switch elements in a single housing, operated by cam-driven plungers (D04) for four discrete positions. Each position provides a SPDT contact set (one NO and one NC), with dual changeover and galvanic isolation between channels, enabling compact, reliable position sensing in one module. The aluminum, anodized housing measures 120 × 84 × 64 mm and offers two M20 cable entries with screw-terminal wiring for robust industrial installation. Rated for up to 250 V AC and 6 A per channel, it supports up to four switching positions at speeds up to 40 m/min and a switching rate of up to 300 cycles per minute, with a mechanical life of about 30 million cycles. The cam-to-reference-edge spacing is specified at 4.50–5.00 mm, and the unit is specified for continuous operation from -5 to 85 °C with an IP67 enclosure rating, making it suitable for demanding automation tasks in machine tools, conveyors, and automated assembly lines. Balluff positions this model as a precise, no-nonsense solution for transmitting control commands to industrial controllers and for initiating safe machine shutoffs in position-critical applications.