# Liquid-level actuation qualifier

Canonical URL: https://eloragrid.ai/symbols/iec-liquid-level-actuation-qualifier
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: Q021401
Drawing use: Schematic
Reference families: IEC, Manufacturer

## Symbol convention

Convention: IEC
Form: Liquid-level actuation qualifier
Autodesk IEC-60617 Symbol Preview — Operating-device and function qualifiers; vendor family reference, not certified IEC geometry or database identifier.

This qualifier identifies actuation responding to liquid level.

## What it represents

This qualifier identifies actuation responding to liquid level. Level is the process condition that initiates operation. It should be distinguished from a drawing of the level instrument, the electrical output contact and the control action that follows.
In a generator fuel system, for example, a level input may participate in pump control or an alarm. The qualifier identifies the input principle while the cause-and-effect schedule states what happens.

## How to read it

- State the sensed vessel or level point and the associated contact condition.
- A level-actuation qualifier does not provide a setpoint or switch mounting height.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- State the sensed vessel or level point and the associated contact condition.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

A level-actuation qualifier does not provide a setpoint or switch mounting height.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: Q021401 (Autodesk token; not a verified IEC database ID)
- Information added: State the sensed vessel or level point and the associated contact condition.
- Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic

## Public references

- [Autodesk IEC-60617 preview: Operating-device and function qualifiers](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-3598E18D-9F8A-48CE-83D0-4CEBA0AE869C.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.