Patent ID: 6313425
Filing Date: 2001-11-06
Classification: H01H

Abstract:
A cassette assembly suitable for use in a circuit breaker comprising:a first electrically insulative cassette half piece having an inner surface, said inner surface having a first recess formed therein, said first recess includes a first portion and a second portion;a second electrically-insulative cassette half piece having an inner surface, said second electrically insulative cassette half piece arranged for mating with said first electrically insulative cassette half piece; and,a first arc chute assembly arranged between said first and second electrically insulative cassette half pieces, said first arc chute assembly including:a first side member having a first end and an opposing second end,a second side member having a first end and an opposing second end,a first tab extending from said second end of said first side member and within said first recess for positioning said first arc chute assembly in said first electrically insulative cassette half piece, anda plurality of plates disposed between said first and second side members and arranged in a stacked spaced-apart relationship and each of said plurality of plates respectively including a notch, said notch formed in a first edge of each of said plurality of plates and opposed to said first tab;wherein said first recess defines an outer periphery corresponding to said first side member and said first tab, said first portion sized to accept said first side member and said second portion sized to accept said first tab, said first side member is properly orientated within said first recess when said first tab is captured within said second portion thereby allowing said first and second electrically insulative cassette half pieces to mate, said first recess sized to reject said first side member that is improperly orientated when said first tab is not captured within said second portion thereby preventing said first side member from being fully inserted within said first recess preventing said first and second electrically insulative cassette half pieces to mate.