The busbars in these series are designed for the supply-side connection of residual current circuit-breakers (RCCBs) DFS 2 or DFS 4 and miniature circuit-breakers (MCBs) on the top side of the devices. The bars with furcated cable lug are available in different variants for residual current circuit-breakers with neutral conductor left or right and provide time-saving and user-friendly processing options. Unused connections can be covered by the EV-S BS protective cover.