Residential circuit breaker having an enhanced thermal-magnetic trip unit
    2.
    发明授权
    Residential circuit breaker having an enhanced thermal-magnetic trip unit 失效
    具有增强的热磁跳闸单元的住宅断路器

    公开(公告)号:US5870008A

    公开(公告)日:1999-02-09

    申请号:US804045

    申请日:1997-02-21

    IPC分类号: H01H71/40 H01H75/12

    CPC分类号: H01H71/405

    摘要: A residential circuit breaker electromagnetic trip unit facilitates the assembly of the trip unit components by use of a pair of braid connectors for connection between the trip unit magnet and the circuit breaker contact arm. The trip unit bimetal is directly welded to the trip unit magnet and the braid connectors for reduction in material and labor costs. The contact arm and the magnet are shaped to present a parallel path connection between the contact arm and the magnet for close fit tolerance. The front surface of the magnet is configured to prevent magnetic adhesion between the magnet and the trip unit armature under intense short circuit overcurrent conditions.

    摘要翻译: 住宅断路器电磁跳闸单元通过使用一对编织连接器来有助于跳闸单元组件的组装,用于在跳闸单元磁体和断路器接触臂之间连接。 跳闸单元双金属直接焊接到跳闸单元磁体和编织连接器,以减少材料和人工成本。 接触臂和磁体成形为呈现接触臂和磁体之间的平行路径连接,以实现紧密配合公差。 磁体的前表面构造成在强烈的短路过电流条件下防止磁体和跳闸单元电枢之间的磁粘附。

    Circuit breaker handle interlock
    3.
    发明授权
    Circuit breaker handle interlock 失效
    断路器手柄互锁

    公开(公告)号:US06137069A

    公开(公告)日:2000-10-24

    申请号:US292666

    申请日:1994-08-18

    IPC分类号: H01H71/10 H01H9/26

    CPC分类号: H01H71/1018 H01H2071/1036

    摘要: Multi-pole circuit breakers are joined together to form a common assembly. The individual poles are in the form of compact circuit breakers having a pair of separable contacts controlled by a single externally-accessible operating handle. The individual circuit breakers are riveted together and are keyed such that the contacts open and close in unison. The individual handles are interlocked together by means of a unitary plastic handle tie.

    摘要翻译: 多极断路器连接在一起以形成共同的组件。 单个极点是紧凑型断路器的形式,其具有由单个外部可访问操作手柄控制的一对可分离触点。 单个断路器铆接在一起,并且键合使得触点一致地打开和关闭。 单个手柄通过一体式塑料手柄连接在一起。