Plug-in connection arrangement for an electrical terminal block

An electrical terminal block arrangement, comprising:

• a plurality of electrical terminal blocks, each electrical terminal block comprising a respective plug-in connection arrangement,
• wherein each terminal block of the electrical terminal block comprises a relay holder configured to hold a respective relay, each respective relay comprising a bottom wall, a side wall, and a contact plug which projects out of the bottom wall, wherein the side wall is arranged perpendicularly on the bottom wall and comprises an offset section which contacts the bottom wall and projects out into the relay in a direction of a surface normal of the side wall;
• wherein each relay holder comprises a socket configured to hold the contact plug of the respective relay when the respective relay is inserted into the relay holder;
• wherein each relay holder further comprises an insulating wall which, when the respective relay is inserted into the relay holder, is aligned parallel to the side wall and projects beyond the bottom wall to form an angled insulation section for the contact plug along one surface of the insulating wall;
• and
• wherein the electrical terminal blocks are congruently next to each other.