{"schemaVersion":1,"slug":"additional-circuit-breaker-pole","name":"Additional circuit-breaker pole","kind":"symbol","abbreviation":"CB POLE","aliases":["HCB2","VCB2"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"An additional pole is a separately drawn part of a multipole circuit breaker.","description":["An additional pole is a separately drawn part of a multipole circuit breaker. Parent and child representations retain a shared device identity while allowing the phase conductors to appear on separate schematic lines."],"readingNotes":["Verify common operation and the shared breaker tag across all poles.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Match parent device tag","Identify pole terminal numbers","Show common mechanical operation"],"distinction":"A second schematic pole is not a second independently operated breaker.","facts":[{"label":"Drawing role","value":"Circuit interruption"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HCB2, VCB2 (Autodesk identifiers; not IEC symbol numbers)"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."}],"references":[{"sourceId":"pub-symbol-additional-breaker-poles","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["circuit-breaker","52-ac-circuit-breaker"],"artwork":"edu-additional-circuit-breaker-pole","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/additional-circuit-breaker-pole","illustration":{"url":"https://eloragrid.ai/library/illustrations/additional-circuit-breaker-pole.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-symbol-additional-breaker-poles","title":"AutoCAD Electrical: Additional circuit-breaker poles","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-8B9070E1-A978-429D-A552-27BEFAE1C60E.htm","type":"cad-reference","scope":"Public vendor catalogue naming and functional variants. Vendor block names are not IEC identifiers. Linked for reference; no graphics or CAD files are redistributed.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}]}