Series terminal, test plug and test terminal block

Test terminal block comprised of a plurality of series terminals located next to one another in accordance and a plurality of test plugs, the individual test plugs being pluggable onto the individual series terminals,

• wherein on two sides of the plurality of series terminals there is a respective mounting terminal which has a terminal housing with at least one fastening device, and
• wherein on both sides of the plurality of test plugs there is a respective fastening element which has a fastening means which corresponds to the fastening device so that the plurality of test plugs are mechanically connected via the fastening element to the mounting terminals;
• wherein each of the electrical series terminals, comprises:
• a terminal housing,
• at least two conductor connecting elements located in the terminal housing, and
• at least two current busses having first end regions assigned to a respective conductor connecting element and the second end regions which together form an elastic contact region for accommodating a contact plug of a test plug, the second end regions in an uninserted state of the contact plug making contact in a contact region so that a pair conductor connecting elements are electrically connected to one another via the current busses,
• wherein the second end regions of the at least two current busses have elastic contact legs which are bent back relative to one another and which together to form a second elastic contact region for holding the contact plug of a test plug,
• wherein the contact legs of the second contact region in the uninserted state of the contact plug do not touch each other so that the second contact region is open, and
• wherein the second contact region in an insertion direction of the contact plug of a test plug is located in front of the first contact region so that an inserted contact plug first makes contact with the second contact region and only upon further insertion makes contact with the first contact region;
• and
• wherein each of the test plugs, comprises:
• an insulating housing and
• a contact plug, the contact plug having two terminal contacts which are arranged in succession in a lengthwise direction of the test plug and which are separated from one another by an insulating piece,
• wherein a first of the terminal contacts is connected in an electrical conductive manner to a conductor connecting element via a first current bus section,
• wherein a second terminal contact is connected to a second current bus section which has at least two openings, and
• wherein there are at least two jumper shafts in the insulating housing for insertion of at least two plug-in jumpers corresponding to said two openings.