公开(公告)号：EP4006936A1

公开(公告)日：2022-06-01

申请号：EP21155766.5

申请日：2021-02-08

Applicant: ABB Schweiz AG

Inventor： YAN, Congming ,  CHEN, Xingjie ,  HUANG, Liqun ,  YANG, Huihuang ,  XIAO, Ziying

IPC: H01H9/26

Abstract: Embodiments of the present disclosure relate to a switch device, comprising: a first three-position switch; a second three-position switch disposed below the first three-position switch; a circuit breaker disposed between the first three-position switch and the second three-position switch. A first interlock unit is disposed above the circuit breaker and connected to the circuit breaker and the first three-position switch, and configured to block a manual operation of the first three-position switch in a closed state of the circuit breaker, and configured to block a manual closing operation of the circuit breaker while the first three-position switch is manually operated in an open state of the circuit breaker. A second interlock unit is disposed below the circuit breaker and connected to the circuit breaker and the second three-position switch, and is configured to block a manual operation of the second three-position switch in the closed state of the circuit breaker, and configured to block a manual closing operation of the circuit breaker while the second three-position switch is manually operated in the open state of the circuit breaker.