A system for the connection of electrical conductors with different potentials, consisting of at least two adjacently arranged electrical terminals (10) with sockets (12) and at least two plug-in links (14), which in each case at least two by means of a head web (14.1) and connected to one another in the plug-in receiving means (12), which can be inserted plug contacts (14.2), characterized in that the plug-in links (14) and the electrical terminals (10) are designed to be matched to one another in such a way that the one plug-in jumper (14) in the plug-in receiving means (12) of the same electrical terminal (10) and the other plug-in jumper (14) for this by means of cross in plug-in receiving means (12) of two indirectly or directly adjacent to each other arranged electric terminals (10) can be inserted.
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