# Thermal-effect qualifier

Canonical URL: https://eloragrid.ai/symbols/iec-thermal-effect-qualifier
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: Q020801
Drawing use: Schematic
Reference families: IEC, Manufacturer

## Symbol convention

Convention: IEC
Form: Thermal-effect qualifier
Autodesk IEC-60617 Symbol Preview — Physical-effect qualifiers; vendor family reference, not certified IEC geometry or database identifier.

A thermal-effect qualifier identifies a function responding to or producing heat-related behaviour.

## What it represents

A thermal-effect qualifier identifies a function responding to or producing heat-related behaviour.
State whether temperature is the initiating condition or an output effect.
A thermal qualifier is different from a complete temperature sensor or a trip-setting value.

## How to read it

- State whether temperature is the initiating condition or an output effect.
- A thermal qualifier is different from a complete temperature sensor or a trip-setting value.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- State whether temperature is the initiating condition or an output effect.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

A thermal qualifier is different from a complete temperature sensor or a trip-setting value.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: Q020801 (Autodesk token; not a verified IEC database ID)
- Information added: State whether temperature is the initiating condition or an output effect.
- Preview: Independent educational concept; consult the publisher and applicable standard for the exact graphic

## Public references

- [Autodesk IEC-60617 preview: Physical-effect qualifiers](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-415094F8-A451-4C12-92F0-EF3890FBED72.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.