{"schemaVersion":1,"slug":"iec-thermal-effect-qualifier","name":"Thermal-effect qualifier","kind":"symbol","abbreviation":"Q020801","aliases":["Thermal-effect qualifier symbol","Q020801","Thermal-effect qualifier IEC reference"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"A thermal-effect qualifier identifies a function responding to or producing heat-related behaviour.","description":["A thermal-effect qualifier identifies a function responding to or producing heat-related behaviour.","State whether temperature is the initiating condition or an output effect.","A thermal qualifier is different from a complete temperature sensor or a trip-setting value."],"readingNotes":["State whether temperature is the initiating condition or an output effect.","A thermal qualifier is different from a complete temperature sensor or a trip-setting value."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","State whether temperature is the initiating condition or an output effect.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"A thermal qualifier is different from a complete temperature sensor or a trip-setting value.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"Q020801 (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"State whether temperature is the initiating condition or an output effect."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"iec-public-effect","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-thermal-effect-qualifier","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Thermal-effect qualifier","reference":"Autodesk IEC-60617 Symbol Preview — Physical-effect qualifiers; vendor family reference, not certified IEC geometry or database identifier."},"url":"https://eloragrid.ai/symbols/iec-thermal-effect-qualifier","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-thermal-effect-qualifier.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-effect","title":"Autodesk IEC-60617 preview: Physical-effect qualifiers","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-415094F8-A451-4C12-92F0-EF3890FBED72.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."}]}