公开(公告)号：US3792402A

公开(公告)日：1974-02-12

申请号：US3792402D

申请日：1971-11-03

申请人： FURNAS ELECTRIC CO

发明人： PELUCHIWSKI J ,  WALSTAD D

IPC分类号： H01H71/10 ,  H01H71/54 ,  H01H61/02

CPC分类号： H01H71/1009 ,  H01H71/54

摘要： A manually operated switching device which includes a pivotally mounted actuating bracket carrying a cross bar which advances toward and away from a set of fixed contacts as the bracket is rotated. A set of movable contacts on the cross bar make or break the circuit as the bar is moved. A thermal overload device including a plunger normally held in a fixed position by a pawl and detent arrangement but in response to excess heat caused by excessive current in a controlled conductor the detent may rotate permitting a spring to drive the plunger to a position where it operates a reset bracket which in turn operates the actuating bracket opening the circuit and prevents its operation until the thermal overload has been removed.

摘要翻译： 一种手动切换装置，其包括枢转地安装的致动支架，该致动支架承载横杆，当支架旋转时，该横杆朝向和远离一组固定触点前进。 横杆上的一组可动触点在条移动时使电路断开或断开。 一种热过载装置，其包括通常由棘爪和定位装置保持在固定位置的柱塞，但是响应于由受控导体中的过大电流引起的过多的热量，制动器可旋转允许弹簧驱动柱塞到其操作的位置 复位支架又使操作支架打开电路并防止其操作，直到热过载被去除。