{"schemaVersion":1,"slug":"high-speed-relay","name":"High-speed relay","kind":"symbol","abbreviation":"K FAST","aliases":["HCR1HSP","VCR1HSP"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A high-speed relay has a documented operating response intended for duties where relay timing matters.","description":["A high-speed relay has a documented operating response intended for duties where relay timing matters. Schematics need the specific model and circuit role rather than an unqualified speed claim."],"readingNotes":["Read operate and release times under the specified coil and contact conditions.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Name relay model","Reference operate and release data","Show controlled circuit"],"distinction":"High-speed classification does not imply a complete protection scheme's total clearing time.","facts":[{"label":"Drawing role","value":"Relay operation"},{"label":"Representation scope","value":"Functional concept; not an official standard graphic or a product footprint"},{"label":"Public vendor block reference","value":"HCR1HSP, VCR1HSP (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":"autodesk-contacts","relevance":"Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic."}],"related":["relay-coil","normally-open-contact"],"artwork":"edu-high-speed-relay","publishedOn":"2026-10-13","updatedOn":"2026-10-13","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/high-speed-relay","illustration":{"url":"https://eloragrid.ai/library/illustrations/high-speed-relay.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"autodesk-contacts","title":"Relays and contacts: public symbol reference","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-011C62B8-9EC8-485C-B47D-B22A3F7B7574.htm","type":"cad-reference","scope":"Normally open, normally closed and changeover contacts, relay coils and latching relay variants.","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."}]}