Central piece with lock for the roller shutter key switch S.1 in white, glossy finish. The switch program is available in polar white glossy (similar to RAL 9010), white glossy (similar to RAL 1013), and red glossy (similar to RAL 3003). It is made of thermoplastic, is scratch-resistant, and is available in polar white matte (similar to RAL 9010) as well as anthracite matte (similar to RAL 7021), which is shatterproof and impact-resistant. The frame is available in 1 to 5 gang configurations and can be installed both vertically and horizontally. The square base shape features sharp corners with a rounding radius of 0.4 mm and a curved geometry with either a glossy or matte surface. The rocker switches/covers have a curved geometry with dimensions of 55 mm x 55 mm and corners with a rounding radius of 0.4 mm. The installation devices are suitable for IP 20 / 21. Labeling is partially possible through writable rockers/covers as well as with writable frames in 1 to 5 gang configurations. The products are abrasion-resistant, marked by printing, and can be illuminated according to workplace regulations. The materials used are halogen-free and UV-stable, and the surfaces are easy to clean and resistant to disinfectants. Over 200 applications.