Electronic terminal block for a data bus

An electronic terminal block for a data bus having:

• control electronics comprising an electrical contacting unit connected via an internal current line, a data-bus-contacting unit connected via an internal data-bus line and a connecting unit for connecting bus subscribers;
• a metal housing in which the control electronics are arranged and which comprises a first housing face having a receptacle in a carrier rail, a second housing face having a recess for the connecting unit of the control electronics and a housing side face, wherein the housing side face comprises a first opening for the data-bus-contacting unit of the control electronics and a second opening for the electrical contacting unit of the control electronics;
• and
• a coupling plate for mounting onto the housing side face, which comprises a first recess having an engagement feature in the region of the first opening of the first housing side face as well as a second recess having an engagement feature in the region of the second opening of the housing side face;
• wherein the coupling plate is made of a non-metallic material, preferably an electrical insulator;
• and
• wherein the engagement features comprise protruding enclosures.

A bus-bar station comprising a bus coupler and a plurality of electronic terminal blocks which may be arranged side-by-side on a carrier rail;

• wherein an electronic terminal bar comprises a metal housing in which the control electronics are arranged and which comprises a first housing face having a receptacle in a carrier rail, a second housing face having a recess for the connecting unit of the control electronics, a first housing side face, a first opening for the first data-bus-contacting unit, and a second housing side face which comprises a first opening for the second data-bus-contacting unit of the control electronics;
• a first coupling plate for mounting onto the first housing side face, which comprises a first recess having an engagement feature in the region of the first opening of the first housing side face;
• a second coupling plate for mounting onto the second housing side face, which comprises a first recess having an engagement feature in the region of the first opening of the second housing side face;
• wherein the first and second coupling plates are made of a non-metallic material;
• and
• wherein the engagement features comprise protruding enclosures.