Patent ID: 6747534
Filing Date: 2004-06-08
Classification: H01H

Abstract:
A circuit interrupter, comprising:an interrupter housing; an operating mechanism disposed within said interrupter housing; separable contacts disposed within said interrupter housing in cooperation with said operating mechanism for being opened by said operating mechanism; a trip unit disposed within said interrupter housing in cooperation with said operating mechanism for actuating said operating mechanism for opening said separable contacts upon the occurrence of a predetermined magnetic trip level related to the electrical current level flowing through said separable contacts, said trip unit being disposed within a trip unit housing; and said trip unit comprising a rotatable device affixed to a cam for adjusting said predetermined magnetic trip level, said rotatable device including a surface with a detent therein, a flexible capture lever comprising a flexible central span and two ends, one end of said flexible capture lever being affixed to said trip unit housing for support, the other end of said flexible capture lever comprising a protrusion which moves into said detent when aligned therewith, said flexible central span providing sufficient flexion to accommodate movement of said protrusion into said detent upon rotation of said rotatable device and to maintain it therein to thus fix said predetermined magnetic trip level.