# Ultrasonic proximity switch

Canonical URL: https://eloragrid.ai/symbols/iec-ultrasonic-proximity-switch
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: HPX1U
Drawing use: Schematic
Reference families: IEC, Manufacturer

## Symbol convention

Convention: IEC
Form: Ultrasonic proximity switch
Autodesk IEC-60617 Symbol Preview — Ultrasonic switch forms; vendor family reference, not certified IEC geometry or database identifier.

An ultrasonic-switch representation identifies presence or distance switching using an ultrasonic sensing principle.

## What it represents

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.

## How to read it

- State the sensing role, output type and selected device connection separately.
- Ultrasonic sensing is distinct from inductive, capacitive and optical sensing.

## Information to show or reference

- 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.

## Important distinction

Ultrasonic sensing is distinct from inductive, capacitive and optical sensing.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: HPX1U (Autodesk token; not a verified IEC database ID)
- Information added: State the sensing role, output type and selected device connection separately.
- Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic

## Public references

- [Autodesk IEC-60617 preview: Ultrasonic switch forms](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-06552B8C-FF75-458B-8761-548C5BCED3AA.htm) — Autodesk. Official public publisher family name and reference context; vendor identifiers and graphics are distinct from licensed IEC database content.

## 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.