Plug-in circuit breaker assembly

A circuit breaker assembly comprising:

• a housing;
• an electrical bus structure coupled to said housing;
• a number of first plug-in members coupled to said electrical bus structure;
• a number of circuit breakers comprising a first surface, a manual operator disposed from said first surface and a second plug-in member disposed
• opposite said first surface, the second plug-in member of each of said number of circuit breakers being mated with a corresponding one of said number of first plug-in members;
• and
• a plate member removably coupled to said housing, said plate member comprising a first surface, an opposite second surface and a number
• of apertures disposed through the first surface and the opposite second surface of said plate member,
• wherein said manual operator passes through a corresponding one of said number of apertures,
• wherein the first surface of said number of circuit breakers engages the opposite second surface of said plate member in order to maintain
• mating of each of said number of circuit breakers with the corresponding one of said number of first plug-in members,
• wherein a number of said number of circuit breakers comprises a number of auxiliary contacts;
• and
• wherein said electrical bus structure comprises a plurality of laminated power layers and an auxiliary printed circuit board in electrical communication with said number of auxiliary contacts.

A circuit breaker assembly comprising:

• a housing;
• an electrical bus structure coupled to said housing;
• a number of first plug-in members coupled to said electrical bus structure;
• a number of circuit breakers comprising a first surface and a second plug-in member disposed opposite said first surface, the second plug-in member of each of said
• number of circuit breakers being mated with a corresponding one of said number of first plug-in members;
• and
• a plate member removably coupled to said housing, said plate member comprising a first surface and an opposite second surface,
• wherein the first surface of said number of circuit breakers engages the opposite second surface of said plate member in order to maintain mating
• of each of said number of circuit breakers with the corresponding one of said number of first plug-in members, wherein said electrical bus structure comprises
• a plurality of layers of a conductive power bus, and wherein each of said plurality of layers is sandwiched between two layers of a thermally conductive thermoplastic.