{"schemaVersion":1,"slug":"ansi-relay-coil","name":"ANSI/IEEE relay coil symbol","kind":"symbol","abbreviation":"Coil","aliases":["IEEE relay coil symbol","ANSI relay coil symbol","HCR1"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-oriented graphical reference for relay coil, with public vendor evidence and drawing-reading notes.","description":["The relay-coil form marks the operating element associated with separately referenced contacts. Control supply and coil terminals are traced as one circuit, while the contacts can switch different supplies elsewhere on the schematic.","This is a convention-specific lookup based on the publisher's IEEE-labelled preview. The geometry here is independently drawn to explain the connection or operation; it is not a certified reproduction of the standard graphic."],"readingNotes":["Use the device tag to gather all associated contacts.","Read the selected library and the project legend together. A vendor block identifier is meaningful within its named library and is not a universal standard-symbol code."],"drawingChecklist":["State coil voltage/type","Identify coil terminals","Provide contact cross-references"],"distinction":"A relay operating element is different from one of its switched contacts, even when both share the same tag.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview — Relays and Contacts"},{"label":"Public vendor block name","value":"HCR1 (Autodesk identifier; not an IEEE symbol number)"},{"label":"Standards context","value":"IEEE/ANSI 315-1975 covers diagram graphics. IEEE lists this edition as Inactive-Reserved."},{"label":"Artwork scope","value":"Original functional illustration; exact standard glyph and compliance are not certified"}],"references":[{"sourceId":"ansi-autodesk-f8eac387-53cf-45fe-be6a-c0c8fb3c1b22","relevance":"Exact public IEEE-oriented category page verifying the component name and vendor block identifier."},{"sourceId":"ieee-315","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}],"related":["relay-coil","normally-open-contact","normally-closed-contact","contactor"],"artwork":"edu-ansi-relay-coil","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"Autodesk IEEE-oriented Relays and Contacts functional form","counterpart":"relay-coil","reference":"Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted."},"url":"https://eloragrid.ai/symbols/ansi-relay-coil","illustration":{"url":"https://eloragrid.ai/library/illustrations/ansi-relay-coil.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"ansi-autodesk-f8eac387-53cf-45fe-be6a-c0c8fb3c1b22","title":"Autodesk IEEE Symbol Preview — Relays and Contacts","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F8EAC387-53CF-45FE-BE6A-C0C8FB3C1B22.htm","type":"cad-reference","scope":"Verified public IEEE-oriented vendor catalogue. Block names identify vendor symbols, not IEEE standard symbol numbers. Linked only; graphics and CAD files are not redistributed. IEEE/ANSI 315-1975 is a historical graphics reference with Inactive-Reserved status; this page does not certify current standards compliance.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Exact public IEEE-oriented category page verifying the component name and vendor block identifier."},{"id":"ieee-315","title":"IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams","publisher":"IEEE Standards Association","url":"https://standards.ieee.org/ieee/315/515/","type":"standard","scope":"Graphic symbols and designation letters. IEEE lists this edition as Inactive-Reserved; it is a historical reference, not a claim of current compliance.","checkedOn":"2026-10-13","reuse":"link-only","relevance":"Graphic-symbol standards context and official status; not a source of reproduced artwork."}]}