Busbar system and connecting or appliance adapter

A busbar system, having a mounting unit (2) for receiving busbars (4), and at least one device adapter (1) which has a receiving bridge (1.1) for receiving one of terminals and devices (8), and is embodied for electrical connection with the busbars, wherein the mounting unit (2) embodied in cross section as a shallow U-shaped trough with a base section (2.1) has holding segments (2.21, 2.31) along lateral longitudinal edge sections (2.2,2.3), which extend parallel with each other, and on two oppositely located end sections the at least one adapter (1) has a first and a second fastening section (1.2, 1.3) matched to the edge sections (2.2, 2.3) to which they are assignable and have holding elements (1.21, 1.31) which work together with the holding segments (2.21, 2.31) for fixing the adapter (1) in place, the busbar system comprising:

• for fixing the busbars (4) in place in the mounting unit (2) electrically insulating busbar holders (3) are arranged transversely with respect to the busbars (4) in a trough, and the busbars (4) seated on a top of the busbar holder (3) facing away from the base section (2.1) in a lower part (3.1) of the holder, and are fixed in place by one of a screwed top and a snapped on top (3.2).