The CW4L-M1E11Q4R is a Flush Silhouette Series illuminated pushbutton switch designed for industrial control applications requiring momentary operation with visual feedback. It features a round flush operator with a f22.3 mm mounting hole and f28 mm bezel size, silver contacts in a 1NO1NC (one normally open, one normally closed) configuration, and removable contact design for serviceability. The illuminated unit operates at 24V AC/DC with LED indication and is housed in a red button with an IP65 degree of protection rating, making it suitable for harsh industrial environments. The switch employs heavy-duty operating force characteristics and screw-type M3.5 terminals for secure panel mounting. Common applications include machinery control panels, emergency stop circuits, process automation, and operator interface stations where reliable momentary switching with visual status indication is required.