UPGRADABLE FUNCTIONAL FEEDER UNIT OF A LOW-VOLTAGE ELECTRICAL CUBICLE

摘要

A functional feeder unit of a low-voltage electrical cubicle contains a vertical multipole busbar 12 comprising conducting bars 24 and a mounting plate 20 for support and connection of an electrical apparatus 22. A protection grid 14 equipped with holes 30 is positioned at the front of the bars 24 which extend edgewise in the parallel vertical planes offset along the transverse direction between two flanges 26, 28. A connection interface 16 with draw-in contacts 18 is inserted between the protection grid 14 to engage on the corresponding phase bar 24. Centering means position the mounting plate 20 on the grid 14 to align the ends 56 of the current conductors 48, 50, 52 of the mounting plate 20, 20A on the bars 24 in a direction perpendicular to the connection interface 16.