BREAKER AND SAFETY CIRCUIT PROVIDED WITH SAME

The breaker is provided with a fixed contact a movable piece extending in a first direction (D), a thermally actuated element a case accommodating the movable piece and the thermally actuated element and a terminal piece which partially protrudes outside the case and is to be electrically connected with an external circuit. The terminal piece has a first portion and a second portions having different heights from a bottom surface of the case a first bent portion () bent in a first bending direction, and a second bent portion () bent in a second bending direction opposite to the first bending direction. The first bent portion () and the second bent portion () extend in parallel with the first direction (D).