Expander kit for installing small frame circuit breakers in electrical distribution devices designed for large frame circuit breakers

An expander kit for installing a small frame circuit breaker into an electrical distribution device configured for a large frame circuit breaker, the expander kit comprising:

• an adapter configured to attach the small frame circuit breaker onto a large frame circuit breaker mounting bracket, wherein the adapter and the large frame circuit breaker mounting bracket each include mounting points, wherein each of the mounting points of the adapter are configured to face a corresponding one of the mounting points of the large frame circuit breaker mounting bracket, and wherein the mounting points of the adapter are on a substantially same plane;
• a first bus expander configuration;
• a second bus expander configuration;
• and
• a third bus expander configuration;
• wherein the first bus expander configuration is configured to electrically connect an A phase line bus of a large frame line bus assembly to an A phase line terminal of the small frame circuit breaker and to electrically connect a C phase load bus of a large frame load bus assembly to a C phase load terminal of the small frame circuit breaker, wherein the first bus expander configuration is further configured to extend outwards from the A phase line terminal to the A phase line bus and to extend outwards from the C phase load terminal to the C phase load bus;
• the second bus expander configuration is configured to electrically connect a B phase line bus of the large frame line bus assembly to a B phase line terminal of the small frame circuit breaker and to electrically connect a B phase load bus of the large frame load bus assembly to a B phase load terminal of the small frame circuit breaker, wherein the second bus expander configuration is further configured to extend outwards from the B phase line terminal to the B phase line bus and to extend outwards from the B phase load terminal to the B phase load bus;
• and
• the third bus expander configuration is configured to electrically connect a C phase line bus of the large frame line bus assembly to a C phase line terminal of the small frame circuit breaker and to electrically connect an A phase load bus of the large frame load bus assembly to an A phase load terminal of the small frame circuit breaker, wherein the third bus expander configuration is further configured to extend outwards from the C phase line terminal to the C phase line bus and to extend outwards from the A phase load terminal to the A phase load bus,
• wherein when the first, second and third bus expander configurations are connected to the small frame circuit breaker and the small frame circuit breaker is installed on the adapter, a first surface of each of the first, second and third bus expander configurations that is distal to the small frame circuit breaker are on a substantially same plane, each of said first surfaces of the first, second and third bus expander configurations being configured to electrically couple to a respective one of the A, B, and C phase line buses, and a second surface of each of the first, second and third bus expander configurations that is distal to the small frame circuit breaker are on a substantially same plane, each of said second surfaces of the first, second and third bus expander configurations being configured to electrically couple to a respective one of the A, B, and C phase load buses.

An expander kit for making electrical connections between a small frame circuit breaker and a large frame circuit breaker mounting bracket, the expander kit comprising:

• a first bus expander configuration;
• a second bus expander configuration;
• and
• a third bus expander configuration;
• wherein the first bus expander configuration is configured to electrically connect an A phase line bus of a large frame line bus assembly to an A phase line terminal of the small frame circuit breaker and to electrically connect a C phase load bus of a large frame load bus assembly to a C phase load terminal of the small frame circuit breaker, wherein the first bus expander configuration is further configured to extend outwards from the A phase line terminal to the A phase line bus and to extend outwards from the C phase load terminal to the C phase load bus;
• the second bus expander configuration is configured to electrically connect a B phase line bus of the large frame line bus assembly to a B phase line terminal of the small frame circuit breaker and to electrically connects a B phase load bus of the large frame load bus assembly to a B phase load terminal of the small frame circuit breaker, wherein the second bus expander configuration is further configured to extend outwards from the B phase line terminal to the B phase line bus and to extend outwards from the B phase load terminal to the B phase load bus;
• and
• the third bus expander configuration is configured to electrically connect a C phase line bus of the large frame line bus assembly to a C phase line terminal of the small frame circuit breaker and to electrically connect an A phase load bus of the large frame load bus assembly to an A phase load terminal of the small frame circuit breaker, wherein the third bus expander configuration is further configured to extend outwards from the C phase line terminal to the C phase line bus and to extend outwards from the A phase load terminal to the A phase load bus,
• wherein when the first, second and third bus expander configurations are connected to the small frame circuit breaker and the small frame circuit breaker is installed on the large frame circuit breaker mounting bracket, a first surface of each of the first, second and third bus expander configurations that is distal to the small frame circuit breaker are on a substantially same plane, each of said first surfaces of the first, second and third bus expander configurations being configured to electrically couple to a respective one of the A, B, and C phase line buses, and a second surface of each of the first, second and third bus expander configurations that is distal to the small frame circuit breaker are on a substantially same plane, each of said second surfaces of the first, second and third bus expander configurations being configured to electrically couple to a respective one of the A, B, and C phase load buses.

An expander kit for electrically connecting a small frame circuit breaker to large frame circuit breaker line and load bus assemblies, the expander kit comprising:

• a small frame circuit breaker adapter configured to attach the small frame circuit breaker to a large frame circuit breaker mounting bracket;
• an A phase line bus expander configured to electrically connect an A phase line bus of the large frame line bus assembly to an A phase line terminal of the small frame circuit breaker;
• a B phase line bus connector configured to electrically connect a B phase line bus of the large frame line bus assembly to a B phase line terminal of the small frame circuit breaker;
• a C phase line bus expander configured to electrically connect a C phase line bus of the large frame line bus assembly to a C phase line terminal of the small frame circuit breaker;
• an A phase load bus expander configured to electrically connect an A phase load bus of the large frame load bus assembly to an A phase load terminal of the small frame circuit breaker;
• a B phase load bus connector configured to electrically connect a B phase load bus of the large frame load bus assembly to a B phase load terminal of the small frame circuit breaker;
• and
• a C phase load bus expander configured to electrically connect a C phase load bus of the large frame load bus assembly to a C phase load terminal of the small frame circuit breaker,
• wherein a first L-shaped insulator is attached to the A phase line bus expander, a second L-shaped insulator is attached to the C phase line bus expander, a third L-shaped insulator is attached to the A phase load bus expander, and a fourth L-shaped insulator is attached to the C phase load bus expander.