# ANSI/IEEE Three-wire touch-sensitive switch form Canonical URL: https://eloragrid.ai/symbols/ansi-three-wire-touch-sensitive-switch Publisher: Elora Grid Updated: 2026-10-28 Lookup label: HPX11TS3 Drawing use: Schematic Reference families: IEEE / ANSI, Manufacturer ## Symbol convention Convention: IEEE / ANSI Form: Normally Open 3 Wire Autodesk IEEE Symbol Preview: Touch Switches, block HPX11TS3. Matching functional counterpart linked separately. Independently drawn educational geometry; not a certified IEEE glyph or database identifier. Related representation: [Three-wire touch-sensitive switch](https://eloragrid.ai/symbols/iec-three-wire-touch-sensitive-switch) IEEE-library form of three-wire touch-sensitive switch: this representation distinguishes a separately supplied three-wire touch-switch interface. ## In plain English ### What does ANSI/IEEE Three-wire touch-sensitive switch form mean? This reference locates three-wire touch-sensitive switch in Autodesk's IEEE-oriented touch switches family. This representation distinguishes a separately supplied three-wire touch-switch interface. The public library uses HPX11TS3 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 Identify power, return and output using the selected product connection information. Wire count is not an output-polarity or protocol specification. Identify power, return and output using the selected product connection information. Wire count is not an output-polarity or protocol specification. 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 three-wire touch-sensitive switch: this representation distinguishes a separately supplied three-wire touch-switch interface. Wire count is not an output-polarity or protocol specification. ### 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: Touch Switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-75D5D41D-60B5-4D57-852E-D4422F14F392.htm) ## What it represents This reference locates three-wire touch-sensitive switch in Autodesk's IEEE-oriented touch switches family. This representation distinguishes a separately supplied three-wire touch-switch interface. The public library uses HPX11TS3 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. Identify power, return and output using the selected product connection information. Wire count is not an output-polarity or protocol specification. Identify power, return and output using the selected product connection information. Wire count is not an output-polarity or protocol specification. 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 - Identify power, return and output using the selected product connection information. - Wire count is not an output-polarity or protocol specification. ## Information to show or reference - Identify the associated device, circuit or diagram boundary. - Identify power, return and output using the selected product connection information. - Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form. ## Important distinction Wire count is not an output-polarity or protocol specification. ## Facts - Convention evidence: Autodesk IEEE Symbol Preview: Touch Switches; published form: Normally Open 3 Wire. - Public vendor block: HPX11TS3. Vendor library token, not an IEEE symbol number. - Information added: Identify power, return and output using the selected product connection information. - Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic - Artwork scope: Original educational geometry. Exact standard graphics, product ratings and terminal pinouts are not certified. ## Public references - [Autodesk IEEE Symbol Preview: Touch Switches](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-75D5D41D-60B5-4D57-852E-D4422F14F392.htm) — Autodesk. Public IEEE-oriented Touch Switches table explicitly lists HPX11TS3 as Normally Open 3 Wire. 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.