{"schemaVersion":1,"slug":"iec-thermocouple-with-terminal-board","name":"Thermocouple with terminal board","kind":"symbol","abbreviation":"HTC1LTB","aliases":["Thermocouple with terminal board symbol","HTC1LTB, HTC1RTB","Thermocouple with terminal board IEC reference"],"category":"measurement-protection","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"This representation distinguishes a thermocouple circuit expanded to show its terminal-board interface.","description":["This representation distinguishes a thermocouple circuit expanded to show its terminal-board interface.","Coordinate thermocouple polarity, terminal identity and the specified extension/compensating conductors.","Adding a terminal board does not make a thermocouple circuit an ordinary copper voltage circuit."],"readingNotes":["Coordinate thermocouple polarity, terminal identity and the specified extension/compensating conductors.","Adding a terminal board does not make a thermocouple circuit an ordinary copper voltage circuit."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","Coordinate thermocouple polarity, terminal identity and the specified extension/compensating conductors.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"Adding a terminal board does not make a thermocouple circuit an ordinary copper voltage circuit.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"HTC1LTB, HTC1RTB (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"Coordinate thermocouple polarity, terminal identity and the specified extension/compensating conductors."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"pub-symbol-instrumentation","relevance":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}],"related":["current-transformer","voltage-transformer"],"artwork":"edu-iec-thermocouple-with-terminal-board","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Thermocouple with terminal board","reference":"Autodesk IEC-60617 Symbol Preview — Instrumentation and sensor family reference; vendor family reference, not certified IEC geometry or database identifier."},"url":"https://eloragrid.ai/symbols/iec-thermocouple-with-terminal-board","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-thermocouple-with-terminal-board.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-instrumentation","title":"AutoCAD Electrical: Instrumentation and sensors","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-773A36C3-44C6-43EB-9BD0-E0297816B9B2.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":"Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content."}]}