The Altech Corporation 2AS2-1 is a non-illuminated, maintained selector switch body. It requires separate contact blocks and features a 22.5mm round panel cutout.
The Schneider Electric ZB4BD3 is a maintained selector switch head from the Harmony XB4 series. It features a 22mm mounting diameter and a chromium plated metal bezel.
The EAO 61-4210.0 is a non-illuminated, maintained selector switch body from the versatile Series 61. It requires contact blocks and is designed for 16.2mm panel cutouts.
The Schneider Electric ZB4BD2 is a maintained selector push button from the Harmony XB4 series. It features a 22mm round panel cutout and is non-illuminated.