The product range of the MULTIBLOC 00.ST8 or 1.ST8 / RST8 includes NH fuse switch-disconnectors for NH fuse-links according to IEC / EN 60 269-2, VDE 0636-2, size 00 or 1. The products are available in different versions available. 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 safety during installation and maintenance. It is suitable for use in house junction boxes, meter distributors, measurement transformer cabinets and telecommunications transmission stations. The sealing set enables the avoidance or detection of access by unauthorized persons. It can be used for 00.ST8 1-, 2- and 4-pole as well as ST8 / RST8 in sizes 1 and 2.