公开(公告)号：EP2920802A1

公开(公告)日：2015-09-23

申请号：EP13792292.8

申请日：2013-11-08

Applicant: ABB Technology AG

Inventor： PISU, Francesco ,  KOSTOVIC, Jadran ,  KOTILAINEN, Sami ,  SUTHERLAND, Timothy

IPC: H01H1/46 ,  H01H1/50 ,  H01H1/38 ,  H01H1/44

CPC classification number: H01H9/386 ,  H01H1/38 ,  H01H1/44 ,  H01H1/46 ,  H01H1/50

Abstract: The electrical switching device (1) can comprise at least a nominal contact arrangement, wherein the nominal contact arrangement comprises at least a first nominal contact comprising a plurality of nominal contact fingers (3a) forming a finger cage concentric with respect to a longitudinal axis (z), and at least a mating second nominal contact (3b). It can further comprise at least an arcing contact arrangement, wherein the arcing contact arrangement comprises a first arcing contact (4a) and a mating second arcing contact (4b), wherein the first arcing contact comprises at least an arcing contact finger (4a).The arcing contact finger (4a) comprises at its free end a first impact area (7a) in which a first contacting to the second arcing contact (4b) occurs when closing the electrical switching device (1). The first impact area (7a) is formed by a first planar surface arranged at an inclination angle (α) larger than zero degrees with respect to the longitudinal axis (z).