公开(公告)号：US07592888B2

公开(公告)日：2009-09-22

申请号：US11824684

申请日：2007-07-02

申请人： Jason Robert Colsch ,  Ignacio Dapic ,  Dennis W. Fleege ,  Marco Antonio Ramirez Rodriguez ,  James G. Tipton, Jr.

发明人： Jason Robert Colsch ,  Ignacio Dapic ,  Dennis W. Fleege ,  Marco Antonio Ramirez Rodriguez ,  James G. Tipton, Jr.

IPC分类号： H01H9/00 ,  H01H75/10 ,  H01H77/06

CPC分类号： H01H71/74

摘要： A user adjustment assembly for translating user-adjustable dial settings to tripping levels of an electronic trip unit includes a potentiometer and an adjustment button. The potentiometer is positioned inside a cover of the trip unit and includes a potentiometer button. The adjustment button is coupled to the potentiometer for mechanically adjusting it and includes an insulation disc for increasing resistance to electrostatic discharge, preventing contaminants from entering the printed wire assembly components, and preventing application of downward force to the potentiometer button. The insulation disc has a bottom surface that is dimensioned to be larger than the potentiometer button. The adjustment button includes one or more stops that trigger a fail safe operation mode where the tripping levels are automatically adjusted to higher or predetermined protective levels when the adjustment button is moved to those stop positions. Switch calibration is obviated and the simplified design reduces overall cost.

摘要翻译： 将用户可调拨号设置转换为电子跳闸单元的跳闸电平的用户调整组件包括电位计和调整按钮。 电位计位于跳闸单元的盖子内，并包括电位器按钮。 调节按钮耦合到电位计用于机械调节它，并且包括用于增加对静电放电的抵抗力的绝缘盘，防止污染物进入打印的线组件部件，并且防止向电位器按钮施加向下的力。 绝缘盘具有尺寸设计成大于电位器按钮的底面。 调节按钮包括触发故障安全操作模式的一个或多个停止，其中当调节按钮移动到那些停止位置时，跳闸电平被自动调整到较高或预定的保护水平。 开关校准被消除，简化的设计降低了整体成本。