Definitions for "Bus Bar"
A heavy bar or strap (usually of copper) for carrying heavy currents, or serving as a common connection between several circuits.
a heavy copper strap or bar used to connect several circuits together
A rigid conductor for carrying current, for example, to the anode and cathode bars.
Energized metal strip inside the panel box, which has blade-style connectors to which the circuit breakers attach and become energized.
Fuse box, breaker box