The MULTIBLOC 00.ST9 product range includes NH fuse switch disconnectors for NH fuse links in accordance with IEC/EN 60 269-2,0636-2, sizes 00 to 160A. The products are available as a 3-pole design. MULTIBLOC NH fuse switch disconnectors of different sizes can be brought to the same level with suitable covers, which makes a common, flat central cover possible. The system is a modular system in which the various products can be optimally combined. MULTIBLOC enables the user to install quickly and easily and to have a high level of safety during installation and maintenance. This adapter is used for mounting on DIN rails in accordance with DIN EN 60 715-125mm for 00ST9 3-pin.