{"schemaVersion":1,"slug":"busbar","name":"Busbar","kind":"symbol","abbreviation":"Bus","aliases":["bus bar","bus section","bus connection"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","IEEE / ANSI"],"summary":"A common conductive connection distributing power to connected circuits.","description":["A busbar connects multiple power circuits to a common electrical node. In an SLD it is commonly represented as a line with feeder connections. The representation describes connectivity; physical conductor dimensions, enclosure, phase arrangement and current-carrying capabilities are separate equipment information.","Bus sections and bus couplers describe how those electrical nodes can be connected or separated. Keep bus labels consistent between the system drawing, switchboard schedule and equipment documentation. A drawing line is not a scale representation of a physical busbar."],"readingNotes":["Identify each feeder connected to the same bus section.","Use device positions to determine which sections are shown as connected in the stated drawing condition."],"drawingChecklist":["Name each bus or bus section.","Reference ratings and fault-duty information.","Cross-reference any coupler or section device."],"distinction":"A busbar is an electrical connection. Busbar trunking is a physical distribution system with model-specific enclosures and fittings.","facts":[{"label":"Drawing meaning","value":"Shared electrical node"},{"label":"Physical dimensions","value":"Separate from the SLD mark"},{"label":"Related equipment","value":"Busbar trunking and switchboard assemblies"}],"references":[{"sourceId":"autodesk-index","relevance":"Public bus-tap and power-distribution drawing categories."},{"sourceId":"busbar-trunking","relevance":"Manufacturer example of a physical busbar distribution system."}],"related":["circuit-breaker","busbar-trunking","switchboard","power-transformer"],"artwork":"busbar","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/busbar","illustration":{"url":"https://eloragrid.ai/library/illustrations/busbar.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"autodesk-index","title":"IEC-60617 symbol preview directory","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-7871E6EF-24D5-467E-9B74-321FEDC9DFDA.htm","type":"cad-reference","scope":"Public reference directory of named symbol categories. Vendor graphics and CAD library files are not redistributed here.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public bus-tap and power-distribution drawing categories."},{"id":"busbar-trunking","title":"Canalis busbar trunking systems","publisher":"Schneider Electric","url":"https://www.se.com/ww/en/work/products/master-ranges/line-series/","type":"manufacturer","scope":"Public transport and distribution applications for busbar trunking. Select the exact system before using its dimensions.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Manufacturer example of a physical busbar distribution system."}]}