{"schemaVersion":1,"slug":"ansi-capacitive-proximity-switch","name":"ANSI/IEEE Capacitive proximity switch form","kind":"symbol","abbreviation":"PROX CAP","aliases":["HPX1C","VPX1C","IEEE Capacitive","ANSI Capacitive proximity switch"],"category":"control-circuits","drawingTypes":["Schematic"],"referenceFamilies":["IEEE / ANSI","Manufacturer"],"summary":"IEEE-library form of capacitive proximity switch: a capacitive proximity switch detects a target through a change in its sensing capacitance.","description":["This reference locates capacitive proximity switch in Autodesk's IEEE-oriented capacitive switches family. A capacitive proximity switch detects a target through a change in its sensing capacitance. Its supply and switching output are shown separately from the target or process material. The public library uses HPX1C for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.","Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.","Read sensitivity and target conditions from the product selection. Capacitive sensing is different from inductive metal-target sensing. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted."],"readingNotes":["Read sensitivity and target conditions from the product selection.","The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation."],"drawingChecklist":["Identify supply terminals","State output function","Reference target material and sensitivity"],"distinction":"Capacitive sensing is different from inductive metal-target sensing.","facts":[{"label":"Convention evidence","value":"Autodesk IEEE Symbol Preview: Capacitive Switches; published form: Capacitive."},{"label":"Public vendor block","value":"HPX1C. Vendor library token, not an IEEE symbol number."},{"label":"Drawing role","value":"Actuated indication"},{"label":"Identifier status","value":"The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name."},{"label":"Artwork scope","value":"Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified."}],"references":[{"sourceId":"s28-ieee-capacitive-switches","relevance":"Public IEEE-oriented Capacitive Switches table explicitly lists HPX1C as Capacitive. This supports the vendor convention context, not reproduction of the publisher graphic."}],"related":["capacitive-proximity-switch","plc-io","normally-open-contact"],"artwork":"s28-ansi-capacitive-proximity-switch","publishedOn":"2026-10-28","updatedOn":"2026-10-28","provenance":"independent-public-research","symbolVariant":{"convention":"IEEE / ANSI","form":"Capacitive","reference":"Autodesk IEEE Symbol Preview: Capacitive Switches, block HPX1C. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier.","counterpart":"capacitive-proximity-switch"},"plainEnglish":{"title":"What does ANSI/IEEE Capacitive proximity switch form mean?","introduction":"This reference locates capacitive proximity switch in Autodesk's IEEE-oriented capacitive switches family. A capacitive proximity switch detects a target through a change in its sensing capacitance. Its supply and switching output are shown separately from the target or process material. The public library uses HPX1C for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number.","example":"Read the operating mechanism and the contact reference state together. Cross-reference every associated contact to the same device and show which movement, signal or reset changes its condition; the symbol alone does not establish the complete switching sequence.","drawings":"Read sensitivity and target conditions from the product selection. Capacitive sensing is different from inductive metal-target sensing. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted.","terms":[{"name":"Normally open / normally closed","meaning":"The contact state in the normal condition defined for the drawing."},{"name":"Signal","meaning":"Electrical information passed between devices, rather than necessarily the main power supply."},{"name":"Rating","meaning":"A value stating the conditions for which equipment is specified."}],"diagram":"flow","steps":["Identify the device and form","Read the connections and state","Check the equipment reference"],"caption":"A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.","sources":[{"label":"Autodesk IEEE Symbol Preview: Capacitive Switches","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-0A02EC13-587A-4116-8052-B5C587CC11D0.htm"}],"detail":"IEEE-library form of capacitive proximity switch: a capacitive proximity switch detects a target through a change in its sensing capacitance. Capacitive sensing is different from inductive metal-target sensing.","profileId":"reviewed-symbol-20261028"},"url":"https://eloragrid.ai/symbols/ansi-capacitive-proximity-switch","illustration":{"url":"https://eloragrid.ai/tools/electrical-library/illustrations/ansi-capacitive-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":"s28-ieee-capacitive-switches","title":"Autodesk IEEE Symbol Preview: Capacitive Switches","publisher":"Autodesk","url":"https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-0A02EC13-587A-4116-8052-B5C587CC11D0.htm","type":"cad-reference","scope":"Public capacitive switches family names and vendor block tokens. Horizontal, vertical and rotated placements are not separate engineering functions. Exact standard geometry is not reproduced.","checkedOn":"2026-10-28","reuse":"link-only","relevance":"Public IEEE-oriented Capacitive Switches table explicitly lists HPX1C as Capacitive. This supports the vendor convention context, not reproduction of the publisher graphic."}]}