{"schemaVersion":1,"slug":"iec-ultrasonic-proximity-switch","name":"Ultrasonic proximity switch","kind":"symbol","abbreviation":"HPX1U","aliases":["Ultrasonic proximity switch symbol","HPX1U","Ultrasonic proximity switch IEC reference"],"category":"measurement-protection","drawingTypes":["Schematic"],"referenceFamilies":["IEC","Manufacturer"],"summary":"An ultrasonic-switch representation identifies presence or distance switching using an ultrasonic sensing principle.","description":["An ultrasonic-switch representation identifies presence or distance switching using an ultrasonic sensing principle.","State the sensing role, output type and selected device connection separately.","Ultrasonic sensing is distinct from inductive, capacitive and optical sensing."],"readingNotes":["State the sensing role, output type and selected device connection separately.","Ultrasonic sensing is distinct from inductive, capacitive and optical sensing."],"drawingChecklist":["Identify the associated device, circuit or diagram boundary.","State the sensing role, output type and selected device connection separately.","Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form."],"distinction":"Ultrasonic sensing is distinct from inductive, capacitive and optical sensing.","facts":[{"label":"Reference scope","value":"Specific public IEC-context family form"},{"label":"Publisher reference token","value":"HPX1U (Autodesk token; not a verified IEC database ID)"},{"label":"Information added","value":"State the sensing role, output type and selected device connection separately."},{"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-ultrasonic-proximity-switch","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","symbolVariant":{"convention":"IEC","form":"Ultrasonic proximity switch","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-ultrasonic-proximity-switch","illustration":{"url":"https://eloragrid.ai/library/illustrations/iec-ultrasonic-proximity-switch.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."}]}