Abb Schweiz Ag

Abb Technology Ag

Luca Lienhard

Jakub Korbel

Francesco Pisu

Jadran Kostovic

Helmut Heiermeier

Reto Karrer

Timothy Sutherland

Franceso Pisu

An electrical switching device for medium or high voltage circuits having at least a nominal contact arrangement, wherein the nominal contact arrangement includes at least a first nominal contact including a plurality of contact fingers forming a finger cage concentric with respect to a longitudinal axis, wherein the contact fingers are separated from one another by empty slots extending up to a free end of the contact fingers. The empty slots include first and second empty slots, wherein the second empty slots are shorter than the first empty slots, and wherein the contact fingers are grouped in groups, with the contact fingers of each group being separated by second empty slots and the contact fingers of adjacent groups being separated by first empty slots.

Electrical medium or high voltage switching device

Growing community of inventors

Ottenbach, Switzerland

Luca Lienhard