Kit, universN, 450x250mm, for busbar system 60mm, 4-pole, horizontal. Distribution internal installation system univers N kits according to DIN EN 61439-1+2 or VDE 0660-600-1+2, internal grid according to DIN 43870. For the construction of a type-tested switchgear combination up to 2500A, rated voltage 3AC-690 V /50Hz. Sealable contact protection covers reinforced by means of internal gas pressure process with four quick-release bolts and fastening towers each.