Balluff BNS 519-D4 D12-100-11 4 Position Limit Switch

Balluff BNS 519-D4 D12-100-11 is a four-position mechanical multiple-position limit switch designed to detect four discrete positions of a moving part in automation environments. The D12 portion of the code is part of Balluff’s nomenclature for this series, and the unit comprises four switch elements arranged to provide multi-point position feedback within a single housing. This device is typically used to establish sequencing, end-of-travel interlocks, or position feedback on assembly lines, material handling systems, and packaging equipment, enabling reliable control logic based on where a moving component sits along its travel. With four switch positions integrated in one package, it helps reduce wiring complexity and component count while delivering robust mechanical action for industrial applications.