Patent ID: 9627153
Date: 2017-04-18
CPC Classifications: H01H

Claim:
1. An electrical switching device for medium or high voltage circuits comprising: a chamber enclosed by an enclosure which is cylindrical around a longitudinal axis, at least one nominal contact arrangement, wherein the nominal contact arrangement comprises: the empty slots having 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 the second empty slots and the contact fingers of adjacent groups being separated by the first empty slots; wherein each group comprises at least two contact fingers, and wherein the contact fingers are formed by a tubular metal section, wherein the first empty slots and the second empty slots extend from a first end into the tubular metal section, and wherein the contact fingers are interconnected at a second end of the tubular metal section.