Guide Rail Bar/Wiring BarA guide rail bar, also known as a wiring bar or busbar, is a strip of conductive material, typically copper or aluminum, that is used to distribute electrical power in a circuit. Guide rail bars are commonly used in industrial and commercial installations to distribute power to multiple electrical loads, such as motors, lighting, and control circuits. Guide rail bars are typically mounted on DIN rail or other support structures, and are connected to the electrical loads using terminal blocks or other connectors. Guide rail bars offer several advantages over traditional wire-based power distribution systems, including reduced wiring complexity, improved reliability, and better heat dissipation.