Electric circuit breaker device

Abstract

The present invention provides an electric circuit breaker device that can be downsized by reducing the distance the moving body moves. A electric circuit breaker device includes: a housing; a part to be cut that is placed inside the housing and forms a part of an electric circuit; and a power source P placed on the side of a first end part of the housing, the electric circuit breaker device further includes a moving body that includes a first arc-extinguishing space X1 in which the part to be cut is inserted and housed, and which is filled with an arc-extinguishing material M, wherein the housing includes a moving body housing part that allows the moving body to move between the first end part and a second end part opposite to the first end part, the moving body is configured to cut the part to be cut housed in the first arc-extinguishing space X1 of the moving body while moving from the first end part toward the second end part by the power source P, and the housing includes an expanded arc-extinguishing space X2 positioned so as to face an end part of a separable piece of the part to be cut that is cut off and separated, when the moving body has moved and stopped, and the expanded arc-extinguishing space X2 being filled with an arc-extinguishing material M.

Dependencies are inferred from the claim text.