The production programme of MULTIBLOC series 3.ST8 comprises NH fuse switch disconnectors for 630A. They are designed for bottom fitting/panel installation and are available in triple pole and quadruple pole units. For installation of MULTIBLOC NH fuse switch disconnectors in distribution units with central cover, respective covers are used to obtain a uniform profile in height and length. MULTIBLOC size 3 are designed for NH fuse-links in accordance with IEC/EN 60269-2, VDE 0636-2, size 3, 630A. MULTIBLOC offers the user the possibility of fast and easy installation as well as a high degree of security during installation and maintenance. This 4-pole NH fuse switch-disconnector is equipped with 8 connection screws M12 and a permanently mounted special disconnector as a neutral conductor in pole 4 for leading and lagging switching.