Cassette assembly with rejection features

A circuit breaker assembly comprising:

• a first electrically insulative cassette half piece having an inner surface, said inner surface having a first recess and a second recess formed therein;
• 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;
• 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,
• a second side member,
• a tab extending from said first side member and through said first recess for positioning said first side member in said first electrically insulative cassette half piece, and
• a plurality of plates disposed between said first and second side members and arranged in a stacked spaced-apart relationship,
• a second arc chute assembly arranged between said first and second electrically insulative cassette half pieces, said second arc chute assembly including:
• a third side member,
• a fourth side member,
• a tab extending from said third side member and through said second recess for positioning said third side member in said first electrically insulative cassette half piece, and
• a plurality of plates disposed between said third and fourth members and arranged in a stacked spaced-apart relationship,
• a line-side contact strap arranged for connection with an electric circuit, said line-side contact strap including a first fixed contact connected to said line-side contact strap, said first arc chute assembly proximate said line-side contact strap for quenching arcs occurring upon an overcurrent condition;
• a load-side contact strap arranged for connecting with associated electrical equipment, said load-side contact strap including a second fixed contact connected to said load-side contact strap, said second arc chute assembly proximate said load-side contact strap for quenching arcs occurring upon an overcurrent condition;
• a rotor defining first and second opposing sides thereon;
• and,
• a moveable contact arm intermediate said first and second sides, said moveable contact arm defining a first moveable contact at one end arranged opposite said first fixed contact and a second movable contact at an end opposite said one end arranged proximate said second fixed contact, said rotor and said moveable contact arm being retained intermediate said first and second electrically insulative cassette half pieces.

A circuit breaker rotary contact assembly comprising:

• a first electrically insulative cassette half piece having an inner surface, said inner surface having a groove;
• a second electrically insulative cassette half piece arranged for mating with said first electrically insulative cassette half piece;
• a rotor defining first and second opposing sides thereon, said rotor including a pin formed on said first side said pin extending within said groove for allowing said rotor to travel within said groove;
• a moveable contact arm intermediate said first and second sides, said moveable contact arm defining a first moveable contact at one end arranged opposite an opposing first fixed contact and a second movable contact at an end opposite said one end arranged proximate a second fixed contact, said rotor and said moveable contact arm being retained intermediate said first and second electrically insulative cassette half pieces;
• and
• a pivot pin extending from a central portion of said moveable contact arm to a central portion of said rotor for allowing rotation of said moveable contact arm with respect to said rotor.

A circuit breaker assembly comprising:

• a line-side contact strap arranged for connection with an electric circuit, said line-side contact strap including a first fixed contact connected to said line-side contact strap;
• a load-side contact strap arranged for connecting with associated electrical equipment, said load-side contact strap including a second fixed contact connected to said load-side contact strap;
• and
• a circuit breaker rotary contact assembly disposed between said line and load-side contact straps, said circuit breaker rotary contact assembly including:
• a first electrically insulative cassette half piece having an inner surface, said inner surface having a groove,
• a second electrically insulative cassette half piece arranged for mating with said first electrically insulative cassette half piece,
• a rotor defining first and second opposing sides thereon, said rotor including a pin formed on said first side said pin extending within said groove for allowing said rotor to travel within said groove,
• a moveable contact arm intermediate said first and second sides, said moveable contact arm defining a first moveable contact at one end arranged opposite said first fixed contact and a second movable contact at an end opposite said one end arranged proximate said second fixed contact, said rotor and said moveable contact arm being retained intermediate said first and second electrically insulative cassette half pieces, and
• a pivot pin extending from a central portion of said moveable contact arm to a central portion of said rotor for allowing rotation of said moveable contact arm with respect to said rotor.