Sontheimer BC8 13ZM Z51 10 8-Position Selector Switch

Sontheimer BC8 13ZM Z51 10 is an 8-position selector switch designed for panel mounting, enabling reliable manual selection among eight circuit paths. This part number—BC8 13ZM Z51 10—belongs to Sontheimer’s line of Step (selector) switches, which are commonly used to route a single input to one of several outputs in control panels, instrumentation, or machine interfaces. The "ZM" designation indicates a front-mount construction suitable for installation through a central 22.5 mm panel hole, aligning with standard mounting types in Sontheimer’s catalog. In typical Step switch configurations, each position provides a dedicated contact per position, allowing robust switching across eight discrete states. The 8-position arrangement is well-suited for mode selection, selector functions, or multi-circuit control within industrial equipment where compact, mechanically reliable control is needed, and it helps maximize panel density while preserving positive tactile feedback for operators.