An electrical connector includes a contact button having a first layer formed of a first electrically conductive material that is attached to a first electrical bus bar and having a second layer formed of a second electrically conductive material clad to the first layer. The electrical connector includes a clamp assembly including a retaining band surrounding the contact button and the first electrical bus bar and having a spring configured to provide a contact force between the contact button and a second electrical bus bar when the second electrical bus bar is disposed between the contact button and the spring.

An electrical connector includes a contact button having a first layer formed of a first electrically conductive material that is attached to a first electrical bus bar and having a second layer formed of a second electrically conductive material clad to the first layer. The electrical connector includes a clamp assembly including a retaining band surrounding the contact button and the first electrical bus bar and having a spring configured to provide a contact force between the contact button and a second electrical bus bar when the second electrical bus bar is disposed between the contact button and the spring.

A fixing structure for an electrical device of the present invention includes: a first operating unit that has a power receiving unit, which receives power feeding from a power feeding unit of a wiring duct, and that engages and disengages the power receiving unit with and from the power feeding unit; a second operating unit that has a second engagement portion, which is supported by a support unit of the wiring duct, and that engages and disengages the second engagement portion with and from the support unit; and a first lock portion that is provided in the first operating unit and locks the second operating unit.

A fixing structure for an electrical device of the present invention includes: a first operating unit that has a power receiving unit, which receives power feeding from a power feeding unit of a wiring duct, and that engages and disengages the power receiving unit with and from the power feeding unit; a second operating unit that has a second engagement portion, which is supported by a support unit of the wiring duct, and that engages and disengages the second engagement portion with and from the support unit; and a first lock portion that is provided in the first operating unit and locks the second operating unit.

A power connector system includes a busbar having a conductive plate. The conductive plate has first side and a second side. The conductive plate has a thickness profile between the first side and the second side. The conductive plate has a busbar opening therethrough between the first side and the second side. The power connector system includes a busbar connector received in the busbar opening of the conductive plate. The busbar connector includes a busbar housing and a busbar contact received in a socket of the busbar housing. The busbar housing is electrically conductive and electrically connected to the conductive plate in the busbar opening. The busbar contact is electrically conductive and electrically connected to the busbar housing in the socket. The busbar contact has a mating interface configured to mechanically and electrically connect to an electrical component plugged into the socket. The busbar housing and the busbar contact are both contained within the thickness profile of the conductive plate.

A power connector system includes a busbar having a conductive plate. The conductive plate has first side and a second side. The conductive plate has a thickness profile between the first side and the second side. The conductive plate has a busbar opening therethrough between the first side and the second side. The power connector system includes a busbar connector received in the busbar opening of the conductive plate. The busbar connector includes a busbar housing and a busbar contact received in a socket of the busbar housing. The busbar housing is electrically conductive and electrically connected to the conductive plate in the busbar opening. The busbar contact is electrically conductive and electrically connected to the busbar housing in the socket. The busbar contact has a mating interface configured to mechanically and electrically connect to an electrical component plugged into the socket. The busbar housing and the busbar contact are both contained within the thickness profile of the conductive plate.

An electrical connector includes an insulative housing, and a pair of contacts which are secured together by a clamp mounted within the housing. Each electrical contact includes a planar body, spring fingers extending from a first end of the body, and a coupling extending from the body to couple the electrical contacts to the housing. A first deflection zone between the clamp and first ends of the spring fingers allows the spring fingers to deflect in a lateral direction to receive the conductive component within the receiving space. A second deflection zone between the first ends of the spring fingers and the second ends of the bodies allow the bodies and spring fingers to deflect in the lateral direction when the conductive component is received within the receiving space, but the conductive component is not directly aligned with the receiving space.

An insulated connection system for connecting a first busbar and a second busbar to at least a first connector and a second connector. The second busbar including a bar orifice to connect the first connector to the first busbar. The insulated connection system including an electrically insulating casing defining: a first recess portion for accommodating a first connecting portion of the first busbar, a second recess portion for accommodating a second connecting portion of the second busbar, and a sleeve portion for accommodating a portion of the second busbar provided with the bar orifice. The insulated connection system further including a busbar positioning assurance (BPA) member of electrically insulating material configured to accommodate a portion of the first connector and to be received in the connector passage and the bar orifice.

An insulated connection system for connecting a first busbar and a second busbar to at least a first connector and a second connector. The second busbar including a bar orifice to connect the first connector to the first busbar. The insulated connection system including an electrically insulating casing defining: a first recess portion for accommodating a first connecting portion of the first busbar, a second recess portion for accommodating a second connecting portion of the second busbar, and a sleeve portion for accommodating a portion of the second busbar provided with the bar orifice. The insulated connection system further including a busbar positioning assurance (BPA) member of electrically insulating material configured to accommodate a portion of the first connector and to be received in the connector passage and the bar orifice.

A shelf power supply system has a power supply track and a first power taking head and a retractable power supply track, the first power taking head has an external wiring. The retractable power supply track has a first moving part electrically connected to the external wiring and a second moving part being electrically connected with the first moving part and slideable thereon. The second moving part has a terminal. The invention can solve the problems that the wiring is complex and difficult to hide in the power supply system of the low-voltage lamps installed in the shelves and the laminates, suitable for the shelf support arms with different lengths, the size is small, the operation is very convenient, and one track can power multi-layer lamps, avoiding complex winding in the shelf, which is very simple operation and convenient for hidden installation in the shelf.