S3 is a normally open gold-plated contact block designed for use with 22mm non-illuminated metal selector switch operators in panel mount applications. The contact block features gold-plated contacts that provide superior corrosion resistance and reliable electrical performance compared to standard silver contacts. It is certified for NEMA Type 4X and IP 66/67 environments, ensuring durability in harsh industrial conditions. The contact block can be stacked up to 2 blocks across by 3 blocks deep for a total of 6 circuits, and incorporates self-wiping contacts for consistent performance. This component is ideal for control systems, machinery interfaces, and industrial automation applications where reliable switching and environmental protection are essential.