公开(公告)号：US09905377B2

公开(公告)日：2018-02-27

申请号：US15148466

申请日：2016-05-06

Applicant: ABB Technology AG

Inventor： Francesco Pisu ,  Fredrik Lundqvist ,  Jakub Korbel ,  Johan Costyson ,  Kansara Krunal ,  Mattias Runnberg ,  Sami Kotilainen ,  Raphael Rijo-Rude

IPC: H01H1/06 ,  H01H1/38 ,  H01H33/02 ,  H01H1/50

CPC classification number: H01H1/06 ,  H01H1/385 ,  H01H1/50 ,  H01H33/02

Abstract: The invention relates to a circuit breaker comprising a first and a second contact assembly, wherein one of the contact assemblies comprises contact fingers arranged in a finger cage configuration and the other contact assembly comprises a tube or rod contact. The contact fingers comprise an impact point where the tube or rod impacts the contact fingers for the first time during electrical connection establishment, and a contact zone which contacts the tube or rod when the electrical connection is established. The contact zone comprises two contact points separated from one another and arranged on a line which is perpendicular to the longitudinal axis.