| 摘要 |
Disclosed is a circuit breaker (1) comprising a housing (2) and an actuating shaft (7) which is rotatably mounted therein and which includes a first shaft bearing surface (11) corresponding to a first housing bearing surface (13) in the housing (2), and a second shaft bearing surface (12) corresponding to a second housing bearing surface (14) in the housing (2). The two shaft bearing surfaces (11, 12) extend coaxially, and the radius of the first shaft bearing surface (11) is smaller than the radius of the second shaft bearing surface (12). In addition, the first shaft bearing surface (11) has the shape of a cylinder sleeve segment. |
