| 摘要 |
1. Electrical casing for receiving low-voltage modular switchgear, in particular circuit-breakers, fuses, switches, etc., staggered in a plurality of distribution rows (12-16) arranged horizontally in parallel planes staggered in the height sense of the casing according different levels, each row of a predetermined level comprising an assembling of modules (18) with moulded housings and linked to a support rail (20), the electrical supply of the different modules (18) of a same row (12, 14, 16) being performed by means of a comb connector (28) which is electrically connected to the multipole network and which extends in horizontal direction of the support rail (20) in order to ensure the electrical connection of the modules (18) of a same phase, characterized by the fact that multipole busbars (48) lying inside the casing (10) in height direction extend vertically between the extreme levels of the different distribution rows (12-16), and that the comb connector (28) of the modules (18) of each horizontal row (12-16) is connected electrically at a predetermined level with said vertical busbars (48) by means of an assembly block (50R-54T) mechanically secured to the support rail (20) of the corresponding row in order to ensure the holding of the busbars (48). |
