A bus bar assembly includes bus bars and a bus bar holder that is made of an insulating material and holds the bus bars in a non-contact state. The bus bars include base portions that overlap with other bus bars in the axial direction, and connecting portions extending from the base portions along the radial direction. At least two of the bus bars include stepped portions extending toward the other bus bars between proximal ends of the connecting portions and connection ends connected to windings. The bus bar holder molds the base portions and the stepped portions in a state where the connection ends are exposed.

The invention is directed to an extension cord for use with heavy furniture. The extension cord provides an insertion module with prongs which may be inserted into an existing wall outlet, and a rigid, telescoping conduit extending laterally from the wall outlet to provide an extension outlet at a more convenient location. The insertion module also serves as a rotating base, such that the conduit may be rotated a full 180 around the insertion module. The extension cord may also be rotated, and may be secured to the wall with hook and loop fasteners.

A four wire system includes a receptacle section positioned intermediate a female end connector and a male end connector. Each connector includes a series of four conductive electrical wires consisting of a neutral wire, a ground wire, a first hot wire, and a second hot wire. Bus bars are conductively connected to the wires of the end connectors and are conductively connected to a series of terminals for supplying electrical power to an electrical receptacle.

A power distribution system includes a track having a first end, a second end opposite the first end, and a longitudinal axis extending through the first and second ends. The track defines a channel extending along the longitudinal axis. A plurality of power cables is positioned within the channel. A electrical hub is movably coupled to the second end of the track. The electrical hub is electrically connected to the plurality of power cables and includes a power receptacle. The electrical hub is movable relative to the second end of the track to change a position of the power receptacle relative to the track.

A shelf electrical signal connector is provided that includes a ladder connector and a shelf connector. The ladder connector mounts to a ladder of a shelving system and includes a spring-loaded contact pin formed of an electrically conductive material and electrically connected to a first wire configured to carry an electrical signal. The shelf connector mounts to a shelf bracket and includes a contact pad formed of an electrically conductive material that is connected to a second wire. The contact pad abuts and rests on the spring-loaded contact pin to electrically connect the first wire to the second wire when the shelf bracket is mounted to the ladder of the shelving system.

An electrical system comprises a four-wire integral receptacle junction block assembly (530) having a first male end connector set (536) and a second male end connector set (538). The assembly (530) also includes a first duplex receptacle set (540) and a second duplex receptacle set (541). The connector sets (534, 536) are connected to a series of buss bars (570) comprising two hot buss bars (586, 616), a neutral buss bar (620), and a ground buss bar (598). The buss bars (570) can be configured so as to selectively apply incoming power to the duplex receptacle sets (540, 541) from either of two circuits.

A bus bar unit used in a motor including a coil may include a plurality of bus bars including a metal material. At least one of the plurality of bus bars may include a body portion extending in substantially a circumferential direction relative to a center axis of the motor; a first terminal portion electrically connected to the coil of the motor; and an arc-shaped bridge portion connecting a first end portion of the body portion to the first terminal portion. The bridge portion may lie across at least an other one of the plurality of bus bars. An axial position of the body portion and an axial position of the first terminal portion may at least partially overlap with each other.

An electrical system comprises a four-wire integral receptacle junction block assembly (530) having a first male end connector set (536) and a second male end connector set (538). The assembly (530) also includes a first duplex receptacle set (540) and a second duplex receptacle set (541). The connector sets (534, 536) are connected to a series of buss bars (570) comprising two hot buss bars (586, 616), a neutral buss bar (620), and a ground buss bar (598). The buss bars (570) can be configured so as to selectively apply incoming power to the duplex receptacle sets (540, 541) from either of two circuits.

A power distribution block for distributing electrical power is disclosed. The power distribution block includes a plate made of a conductive material. The plate is configured to operate at 1200 amperage and 600 volts. The plate includes holes of various sizes arranged in series. The holes are configured to mount connectors or conductive blocks to the plate in different configurations depending on the need for distribution of the electrical power. Each connector is rated for specific current-carrying capacity. Further, each connector includes at least one input terminal and multiple output terminals, enabling the distribution of electrical power to different loads while maintaining secure and low-resistance connections. The power distribution block includes a cover configured to be placed over the plate to protect the plate and the connectors from environmental factors, physical damage and accidental contact. The power distribution block presents a high-capacity terminal block adaptable to various electrical applications.

An electrical connection device includes a busbar assembly and a connecting assembly, the busbar assembly includes a first busbar and a second busbar which are insulated from each other. The connecting assembly includes two first plugs and two second plugs, the two first plugs are spaced apart from each other along a length direction of the first busbar, are provided to the first busbar, and are respectively toward opposite directions, the two second plugs are spaced apart from each other along a length direction of the second busbar, are provided to the second busbar, and are respectively toward opposite directions.