The C&K COMPONENTS KS11R21CBD is a robust single-pole key switch designed for reliable operation in various industrial and commercial environments. Featuring a positive tactile feel and a selection of cap colors, this switch provides both functionality and aesthetic versatility. Constructed with glass-filled nylon and stainless steel components, it offers durability and long-term performance. It is RoHS compliant and suitable for applications requiring secure and dependable switching action, such as telecommunications equipment, industrial control panels, and instrumentation systems. The switch's easy build-a-switch concept allows for customization to meet specific application requirements.