Multipole ciruit breaker |
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| 申请号 | EP88107952.9 | 申请日 | 1988-05-18 | 公开(公告)号 | EP0292850A3 | 公开(公告)日 | 1990-10-10 |
| 申请人 | MITSUBISHI DENKI KABUSHIKI KAISHA; | 发明人 | Toda, Haruhisa; Fujiwara, Kouhei; Hosogai, Setsuo; Shioguchi, Kazumi; | ||||
| 摘要 | A multipole circuit breaker of a type with a mechanism pole (1A) having a switching mechanism (20) in which adjacent poles (1B,1C) are disposed in opposition to the mechanism pole (1A) with an interphase wall (1c) therebetween and each having an internal attachment (32,42) such as an alarm switch (32) or the like but no switching mechanism. A latch (24) engages a cradle (20a) of the switching mechanism (20) and is arranged to be actuated by an automatic tripping device (4). A supporting shaft (25A) rotatably supports the latch (24), and a lever (29), fixed on the supporting shaft (25A) engages the cradle (20a). Actuators (33A,45) are fixed on the supporting shaft (25A) so as to engage the internal attachment (32,42) of the respective adjacent poles (1B,1C). The supporting shaft (25A) is made of metal. Insulating caps (40) are inserted and fixed onto end portions (25a) of the supporting shaft (25A), the supporting shaft (25A) passing at portions of the insulating caps (40) through the interphase walls (1c). The actuators (33A,45) are inserted and fixed onto the insulating caps (40). | ||||||
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| 说明书全文 | |||||||
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