35x52mm with a standard sizes 22.5mm dia hole
Laser engraved in black onto 1.6mm white laser laminate, with self-adhesive backing
22.5mm (often referred to as 22mm) diameter is the standard for industrial machine switch holes primarily because it has been widely adopted by major industrial manufacturers and international standards organizations (like IEC 60947-5-1) to ensure compatibility, ease of installation, and reliable performance.
