公开(公告)号：US11152179B2

公开(公告)日：2021-10-19

申请号：US15937011

申请日：2018-03-27

Applicant: ABB Schweiz AG

Inventor： Thomas Schmoelzer ,  Markus Hoidis ,  Enrico Dell Oro ,  Chiara Cantini ,  Antonello Antoniazzi ,  Reinhard Simon

IPC: H01H1/021 ,  H01H71/66 ,  C22C5/06 ,  H01H1/0233 ,  H01H3/22 ,  H01H71/02 ,  H01H73/04 ,  B22F7/02 ,  C22C29/08 ,  C22C32/00 ,  H01H37/32 ,  H01H71/04

Abstract: A low voltage circuit breaker is provided. The low voltage circuit breaker includes a contact system with a first contact and a second contact that are electrically connectable and disconnectable relative to one another. The first contact includes a body having a first layer and a second layer, wherein the first layer is arranged on the second layer and is configured to come in contact with the second contact for providing the electrical connection with the second contact. The first layer has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer. Further, the first material composition has a WC content that is lower than a WC content of the second material composition.

公开(公告)号：US20180286620A1

公开(公告)日：2018-10-04

申请号：US15937011

申请日：2018-03-27

Applicant: ABB Schweiz AG

Inventor： Thomas Schmoelzer ,  Markus Hoidis ,  Enrico Dell Oro ,  Chiara Cantini ,  Antonello Antoniazzi ,  Reinhard Simon

IPC: H01H71/66 ,  H01H3/22 ,  H01H1/021 ,  H01H73/04 ,  H01H71/02

Abstract: A low voltage circuit breaker is provided. The low voltage circuit breaker includes a contact system with a first contact and a second contact that are electrically connectable and disconnectable relative to one another. The first contact includes a body having a first layer and a second layer, wherein the first layer is arranged on the second layer and is configured to come in contact with the second contact for providing the electrical connection with the second contact. The first layer has a first material composition having an Ag content that is higher than an Ag content of a second material composition of the second layer. Further, the first material composition has a WC content that is lower than a WC content of the second material composition.