{"schemaVersion":1,"slug":"iec-engaged-mechanical-coupling","name":"Engaged mechanical coupling","kind":"symbol","abbreviation":"Q021218","aliases":["Engaged mechanical coupling symbol","Q021218, Q021219","Engaged mechanical coupling IEC reference"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"This indication identifies engagement between the represented mechanical elements.","description":["This indication identifies engagement between the represented mechanical elements. The represented elements share the documented motion-transmission relationship in the engaged state. That state says nothing by itself about supply energisation or electrical contact position.","Show the driving/driven device identities and connect the engagement state to its actual feedback if used. Alternate publisher graphical forms are retained within this one concept."],"readingNotes":["Document the elements coupled and the applicable state condition.","Different published graphical forms for the same engagement are kept in one concept record."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","Document the elements coupled and the applicable state condition.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"Different published graphical forms for the same engagement are kept in one concept record.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"Q021218, Q021219 (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"Document the elements coupled and the applicable state condition."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"iec-public-coupling","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}],"related":["relay-coil","normally-open-contact"],"artwork":"edu-iec-engaged-mechanical-coupling","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Engaged mechanical coupling","reference":"Autodesk IEC-60617 Symbol Preview — Mechanical coupling qualifiers; vendor family reference, not certified IEC geometry or database identifier."},"url":"https://eloragrid.ai/symbols/iec-engaged-mechanical-coupling","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-engaged-mechanical-coupling.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"iec-public-coupling","title":"Autodesk IEC-60617 preview: Mechanical coupling qualifiers","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F3E7DE9A-47D1-4C25-BBBE-6C07AA1B3033.htm","type":"cad-reference","scope":"Public publisher IEC-context family names and vendor block references. No vendor images or CAD library files are reproduced, and vendor tokens are not presented as verified IEC database identifiers.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}]}