{"schemaVersion":1,"slug":"iec-three-wire-ultrasonic-sensor","name":"Three-wire ultrasonic sensor","kind":"symbol","abbreviation":"HPX11U3","aliases":["Three-wire ultrasonic sensor symbol","HPX11U3, HPX12U3","Three-wire ultrasonic sensor IEC reference"],"category":"measurement-protection","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"This representation distinguishes a three-wire ultrasonic sensor interface from a simple contact depiction.","description":["This representation distinguishes a three-wire ultrasonic sensor interface from a simple contact depiction.","Identify supply, return and output from the selected device's terminal diagram.","Three wires do not determine whether the output is sourcing, sinking or a particular voltage."],"readingNotes":["Identify supply, return and output from the selected device's terminal diagram.","Three wires do not determine whether the output is sourcing, sinking or a particular voltage."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","Identify supply, return and output from the selected device's terminal diagram.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"Three wires do not determine whether the output is sourcing, sinking or a particular voltage.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"HPX11U3, HPX12U3 (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"Identify supply, return and output from the selected device's terminal diagram."},{"label":"Preview","value":"Independent educational concept; consult the publisher and applicable standard for the exact graphic"}],"references":[{"sourceId":"iec-public-ultrasonic","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-three-wire-ultrasonic-sensor","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Three-wire ultrasonic sensor","reference":"Autodesk IEC-60617 Symbol Preview — Ultrasonic switch forms; vendor family reference, not certified IEC geometry or database identifier."},"url":"https://eloragrid.ai/symbols/iec-three-wire-ultrasonic-sensor","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-three-wire-ultrasonic-sensor.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-ultrasonic","title":"Autodesk IEC-60617 preview: Ultrasonic switch forms","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-06552B8C-FF75-458B-8761-548C5BCED3AA.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."}]}