# ANSI/IEEE Inductive proximity switch form Canonical URL: https://eloragrid.ai/symbols/ansi-inductive-proximity-switch Publisher: Elora Grid Updated: 2026-10-28 Lookup label: PROX IND Drawing use: Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: Ferrous Autodesk IEEE Symbol Preview: Inductive Switches, block HPX1I. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Inductive proximity switch](https://eloragrid.ai/symbols/inductive-proximity-switch) IEEE-library form of inductive proximity switch: an inductive proximity switch detects a documented target without a mechanical contact actuator. ## In plain English ### What does ANSI/IEEE Inductive proximity switch form mean? This reference locates inductive proximity switch in Autodesk's IEEE-oriented inductive switches family. An inductive proximity switch detects a documented target without a mechanical contact operating mechanism. The schematic shows its supply and output arrangement, while target distance and material are specified elsewhere. The public library uses HPX1I for its horizontal representation; this is a vendor block name, not an IEEE standards symbol number. ### A simple 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. ### What the drawings help you do Distinguish a two-wire output path from a three-wire supply and signal arrangement. An inductive proximity switch detects an electromagnetic target interaction, not capacitance or an optical beam. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ### This particular reference IEEE-library form of inductive proximity switch: an inductive proximity switch detects a documented target without a mechanical contact operating mechanism. An inductive proximity switch detects an electromagnetic target interaction, not capacitance or an optical beam. ### Terms - Normally open / normally closed: The contact state in the normal condition defined for the drawing. - Terminal: An identified point where a conductor connects. - Signal: Electrical information passed between devices, rather than necessarily the main power supply. Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram. - [Autodesk IEEE Symbol Preview: Inductive Switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-8BB57AEE-EEA3-4ADB-8080-124595C5F63C.htm) ## What it represents This reference locates inductive proximity switch in Autodesk's IEEE-oriented inductive switches family. An inductive proximity switch detects a documented target without a mechanical contact actuator. The schematic shows its supply and output arrangement, while target distance and material are specified elsewhere. The public library uses HPX1I 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. Distinguish a two-wire output path from a three-wire supply and signal arrangement. An inductive proximity switch detects an electromagnetic target interaction, not capacitance or an optical beam. The linked functional counterpart explains the same operating role in its own drawing context; agreement of every detailed convention mark is not asserted. ## How to read it - Distinguish a two-wire output path from a three-wire supply and signal arrangement. - The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation. ## Information to show or reference - State output type - Identify supply and common - Reference target and sensing distance ## Important distinction An inductive proximity switch detects an electromagnetic target interaction, not capacitance or an optical beam. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: Inductive Switches; published form: Ferrous. - Public vendor block: HPX1I. Vendor library token, not an IEEE symbol number. - Drawing role: Actuated indication - Identifier status: 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. - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview: Inductive Switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-8BB57AEE-EEA3-4ADB-8080-124595C5F63C.htm) — Autodesk. Public IEEE-oriented Inductive Switches table explicitly lists HPX1I as Ferrous. This supports the vendor convention context, not reproduction of the publisher graphic. ## Graphic scope Independent original educational concept illustration by Elora Grid. Not a certified standards graphic or manufacturer footprint. Unitless; not to scale. Original artwork licence: https://creativecommons.org/licenses/by/4.0/. Publisher material is linked only.