The MULTIBLOC product range includes NH fuse switch-disconnectors for NH fuse-links according to IEC / EN 60 269-2, VDE 0636-2 of the appropriate size. The products are available as an assembly or rider version. MULTIBLOC NH fuse switch-disconnectors of different sizes can be brought to one level with suitable covers, which enables a common, flat central cover. The system is a modular system in which the various products can be optimally combined. MULTIBLOC allow the user a quick and easy installation option as well as a high level of security during installation and maintenance. This window lock is suitable for 00.ST8 1-, 2- and 4-pole as well as all versions of the ST8 / RST8 in size 1 or 2.