公开(公告)号：US20220102085A1

公开(公告)日：2022-03-31

申请号：US17423626

申请日：2019-08-30

Applicant: LS ELECTRIC CO., LTD.

Inventor： Young-Kook KIM

IPC: H01H9/02

Abstract: A safety shutter of the present disclosure comprises: a base unit; a shutter unit; and a cam unit. The base unit is coupled to a cradle of an air circuit breaker, and a terminal connected to a main circuit passes through the base unit. The shutter unit is coupled to the base unit so as to be spaced apart at a predetermined interval, and accommodates the terminal in the space between the shutter unit and the base unit. The cam unit extends from the base unit and penetrates the shutter unit. The shutter unit deactivates insulation by exposing the terminal in the direction of the air circuit breaker when the air circuit breaker is inserted in the direction of the base unit.