Patent ID: 6229418
Filing Date: 2001-05-08
Classification: H01H

Abstract:
A circuit interrupter device, comprising:a housing;operating mechanism means disposed within said housing;separable contact means disposed within said housing in cooperation with said operating mechanism means for being opened by said operating mechanism means;adjustable trip unit means disposed within said housing in cooperation with said operating mechanism means for actuating said operating mechanism means for opening said separable contact means, said adjustable trip unit means having an adjustment means, an opening in said adjustable trip unit means through which said adjustment means is accessible from a region outside of said trip unit means for adjustment thereof, said adjustable trip unit means having a hinge means;cover means disposed upon said trip unit means and affixed to said hinge means in either of two positions, the first of said two positions allowing removal of and insertion of said cover means from said hinge means and the second of said two positions preventing removal of said cover means from said hinge means, said cover means covering said opening when in said second position to prevent access to said adjustment means from said region outside of said trip unit means, and said cover means being non removable from said adjustable trip unit means at said hinge means in said second position; andseparate lock means disposed on said cover means and said trip unit means for locking said cover means in said second position.