Circuit breaker with easily installed removable trip unit

A circuit device, comprising:

• a housing;
• first circuit means disposed within said housing, said first circuit means having a conductor means with first terminal means and second terminal means;
• second circuit means disposed adjacent to said housing, said second circuit means having a conductor means with first terminal means and second terminal means;
• and
• detachable joining means structured to join said first circuit means second terminal means with said second circuit means first terminal means, said joining means comprising a nut and a bolt, wherein said first circuit means second terminal means and said second circuit means first terminal means each have corresponding openings, said bolt traversing said openings, said nut being threadably engaged with said bolt for capturing said first circuit means second terminal means and said second circuit means first terminal therebetween, wherein said first circuit means second terminal means and said second circuit means first terminal means are structured to overlap and said trip unit is structured to slide said second circuit means in a first direction, wherein said one of said openings is not completely enclosed and wherein one of said first circuit means second terminal means and said second circuit means first terminal means has said nut pre-attached thereto, said joining means being accessible from outside of said housing in a direction generally perpendicular to said first direction.