{"schemaVersion":1,"slug":"additional-fused-switch-pole","name":"Additional fused-switch pole","kind":"symbol","abbreviation":"FUSE POLE","aliases":["HDS21F","VDS21F"],"category":"power-distribution","drawingTypes":["SLD","Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"An additional fused-switch pole represents another conductor of a common multipole device.","description":["An additional fused-switch pole represents another conductor of a common multipole device. Each fuse-link and pole needs its terminal and phase identification while the common operating mechanism stays linked."],"readingNotes":["A shared device tag should not conceal different fuse ratings on separate conductors.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Link parent switch tag","Identify pole and fuse terminals","Verify common operation"],"distinction":"A child pole is a CAD representation of a common device, not an extra independently operated fused switch.","facts":[{"label":"Drawing role","value":"Fused circuit"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HDS21F, VDS21F (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-fused-disconnects","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."},{"sourceId":"switching-devices","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["fuse","load-break-switch"],"artwork":"edu-additional-fused-switch-pole","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/additional-fused-switch-pole","illustration":{"url":"https://eloragrid.ai/library/illustrations/additional-fused-switch-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-fused-disconnects","title":"AutoCAD Electrical: Fusible disconnects","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-FE7E6B30-F585-41F4-9F66-215ACD95A36D.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."},{"id":"switching-devices","title":"Elementary switching devices","publisher":"Schneider Electric — Electrical Installation Guide","url":"https://www.electrical-installation.org/enwiki/Elementary_switching_devices","type":"manufacturer","scope":"Explains disconnectors, load-break switches, contactors and fuses. The manufacturer diagrams remain at the source.","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."}]}