# Ultrasonic NC switching output

Canonical URL: https://eloragrid.ai/symbols/iec-ultrasonic-nc-switching-output
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: HPX12U
Drawing use: Schematic
Reference families: IEC, Manufacturer

## Symbol convention

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

This form identifies a normally-closed switching output in the ultrasonic sensor family.

## What it represents

This form identifies a normally-closed switching output in the ultrasonic sensor family.
Identify the reference sensing condition and connected control input.
Normally closed does not imply a safety-rated diagnostic output.

## How to read it

- Identify the reference sensing condition and connected control input.
- Normally closed does not imply a safety-rated diagnostic output.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- Identify the reference sensing condition and connected control input.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

Normally closed does not imply a safety-rated diagnostic output.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: HPX12U (Autodesk token; not a verified IEC database ID)
- Information added: Identify the reference sensing condition and connected control input.
- 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.