Switch including a moving element, a repelling element and a conductor.

摘要

A switch includes a fixed contact having a first conductor portion (4a) connected to a terminal (5), a second conductor portion (4e) having a stationary contact (3), and a third conductor portion (4d). The third conductor portion is disposed on the side of the other end of a moving contact (1) to which a traveling contact is not mounted with respect to a position of the stationary contact, and on the side opposed to the terminal. The first conductor portion is disposed above a contact surface of contacts at a contact closing time, and is disposed below a contact surface of the traveling contact at a contact opening time. A part of the first conductor portion facing a surface of the traveling contact at an opening time of the contacts is coated with an insulator (15). Thereby, it is possible to provide an excellent current-limiting performance since an entire current path of the fixed contact generates electromagnetic force to stretch an arc (A) on the side of the terminal. <MATH>