| 摘要 |
PROBLEM TO BE SOLVED: To provide a circuit breaker that can enhance the contact reliability of a contact for a residual current transformer.SOLUTION: A circuit breaker has a stationary contact having a fixed contact point and a movable contact 18 having a movable contact point 18a which are provided at some midpoint of a cable way for connecting a plug-in terminal and a load side terminal plate and allowed to contact and separate from each other. The circuit breaker has a residual current transformer for detecting leak current of the cable way, and a contact 73 for the residual current transformer which contacts and separates from the contact 18 interlockingly with the contact and separation of each contact point 18a of each contact 18. The contact 73 for the residual current transformer is configured to be contactable with the contact 18 at plural points. |
