Bus bars are used to distribute Electrical Power among various loads. It takes the power from the source. After that, it transfers the power to the other loads connected to it, bus bars are the point where multiple loads or multiple sources are connected. Different kinds of materials are used for the bus bars. Bus bars are designed according to applications. For example, if they have to be installed in high-power AC systems then they might be made of aluminum or copper.

IMB Electric Bus Bars Data Sheet