Copper busbars are used in electric power distribution, inside switchgear, panel boards and busway enclosures for power distribution. They can also connect power equipment at electrical switchyards and low voltage equipment in battery banks.

Bus bar is often flat in profile, making its lateral surface as large as possible in relation to the material used. This is important for electrical conductivity, as electricity flows most efficiently on the surface. Often coated with tin or silver to enhance corrosion resistance, improve solderability, and prevent oxidation, especially in humid or harsh environments. Many busbars come with pre-drilled holes or slots for easy mounting and connection to other components in electrical systems.