Electric switch and switch enclosure for motor branch circuits
    4.
    发明授权
    Electric switch and switch enclosure for motor branch circuits 失效
    电动分支电路的电气开关和开关外壳

    公开(公告)号:US3632927A

    公开(公告)日:1972-01-04

    申请号:US3632927D

    申请日:1970-10-02

    Applicant: SQUARE D CO

    Inventor: GRIBBLE JOSEPH J

    CPC classification number: H01H71/0264

    Abstract: A motor controller that is intended to be used in a branch circuit to an electric motor and includes an enclosed manually operated overload responsive switch. The enclosure for the switch is provided with a removable cover and a means which are positioned by the cover relative to the overload responsive units of the switch to reduce the length of the arcs generated within the enclosure and the temperature of the hot gases exiting from the enclosure when the current through the branch circuit has a magnitude sufficient to destroy current responsive units.

    Abstract translation: 一种用于在电动机的分支电路中使用的电动机控制器,包括一个封闭的手动过载响应开关。 用于开关的外壳设置有可移除的盖和由盖相对于开关的过载响应单元定位的装置,以减少在外壳内产生的电弧的长度和从外壳中排出的热气体的温度 通过分支电路的电流具有足以破坏电流响应单元的量值。

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