Rigid busbars are exactly what they sound like: solid copper or aluminium bars that create fixed electrical pathways. They appear in switchgear, battery packs, solar inverters, EV charging stations, data centers, and industrial panels — anywhere high current needs to be distributed efficiently. But not all busbars. An electrical busbar ("bus bar" or "buss bar") is a heavy-duty conductor, typically a metallic bar or strip, that carries high currents within electrical equipment. In simple terms, a busbar is a common node where multiple incoming and outgoing circuits connect. Aluminium is an excellent conductor of heat and electricity; temperature differences on different sides of an aluminium profile equalize quickly., <1000 A) where the heat generated is manageable.
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