The CW9Z-L11A-K is a replacement lens component for the ø22mm CW series of switches and pilot devices. This lens features a round, flush-mount profile and is constructed from durable polyalylate material. The 'A' in the part number designates its amber color, specified for visual signaling in various control systems. It is designed to fit into a complete pilot light or illuminated pushbutton assembly that mounts in a standard ø22.3mm panel cutout. This component is ideal for industrial control panels, machinery, and automation equipment requiring clear status indication.