CIRCUIT BREAKER AND METHOD FOR ASSEMBLING CIRCUIT BREAKER

摘要

A trip button (22) is provided with: a push-button part (22b) provided on the top part of a button main body (22a); a joining part (22c) that is provided on the lower part of the button main body and can be joined to a trip cross bar (21); and an axial part (wire material (26a) of a torsion spring (26)) the axial line of which extends in a direction orthogonal to the direction in which the push button part is pushed, said axial part being provided in a location between the push button part of the button main body and the joining part. Furthermore, the structure is such that when the push button part is pressed, the button main body rotates around the axial part and the joining part applies pressing force to the trip cross bar. Furthermore, an opening and closing mechanism (20) (side plate (23a)) is provided with a bearing hole (25) that supports the axial part (26a) of the trip button.