Viewing window with dimensions of 127mm length, 47mm width, and 94mm height. The material is polycarbonate, and it is designed for use with 46277-3 and DIN 43880. The color is gray. This inspection window is suitable for 2, 6, 8, and 12 modules and features break-out protection. It has an IP67 rating (window for 2 modules with IP44 protection). The windows are spring-loaded and can be fixed with knurled screws. The temperature range is -25°C to +80°C.