Terminal Block Top Jumpers

A terminal block top bridge is a conductive part fitted into the bridge slots on top of side-by-side DIN rail terminal blocks, joining two or more terminal blocks at the same potential. In panels it is used for common supply, neutral or common-terminal distribution instead of running a separate jumper wire to each terminal block, and it leaves the conductor entries of the terminal block free for field cables. This category includes snap-in, screw-type, standard and fork-type top bridges and three-level terminal block bridges for Onka MRK and OPK series; lengths such as 2-, 3-, 4-, 10- and 20-pole are available for terminal block cross-sections such as 1.5 mm², 2.5 mm², 6 mm², 10 mm², 16 mm² and 35 mm². Choose the bridge by the series and cross-section of the terminal block, the number of terminal blocks to be joined, the connection style (snap-in or screw-type) and the current the bridge can carry. In expressions such as 6x20 in Onka snap-in bridge names, the first number indicates the terminal block cross-section and the second the number of poles. A top bridge is not a distribution busbar; it only connects side-by-side terminal blocks of the same compatible series and cross-section to each other.

Products

How to choose Terminal Block Top Jumpers

A terminal block top bridge is a conductive part fitted into the bridge slots on top of side-by-side DIN rail terminal blocks, joining two or more terminal blocks at the same potential. In panels it is used for common supply, neutral or common-terminal distribution instead of running a separate jumper wire to each terminal block, and it leaves the conductor entries of the terminal block free for field cables.

  • Clarify whether the task is connection, cable routing, enclosure distribution or termination.
  • Match dimensions, thread standard, conductor cross-section and IP rating with the cable and panel.
  • Choose housing material and pack quantity according to the mounting environment.

Frequently asked questions

What is Terminal Block Top Jumpers and where is it used?

A terminal block top bridge is a conductive part fitted into the bridge slots on top of side-by-side DIN rail terminal blocks, joining two or more terminal blocks at the same potential. In panels it is used for common supply, neutral or common-terminal distribution instead of running a separate jumper wire to each terminal block, and it leaves the conductor entries of the terminal block free for field cables.

What should I compare when choosing Terminal Block Top Jumpers?

Choose the bridge by the series and cross-section of the terminal block, the number of terminal blocks to be joined, the connection style (snap-in or screw-type) and the current the bridge can carry.

Where can I find technical details for Terminal Block Top Jumpers products?

In panels it is used for common supply, neutral or common-terminal distribution instead of running a separate jumper wire to each terminal block, and it leaves the conductor entries of the terminal block free for field cables.

Terminal Block Top Jumpers Selection Guide: Technical Criteria and Engineering Practice