# Isolation-function qualifier

Canonical URL: https://eloragrid.ai/symbols/iec-isolation-function-qualifier
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: Q070103
Drawing use: SLD, Schematic
Reference families: IEC, Manufacturer

## Symbol convention

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

An isolation qualifier identifies the documented disconnector function attached to a switching representation.

## What it represents

An isolation qualifier identifies the documented disconnector function attached to a switching representation. Isolation is a device function that must be distinguished from the ability to interrupt load current or clear faults. A switching representation can therefore carry an isolation qualifier alongside other functional information.
On an SLD, keep the associated device identity and switching function readable. The selected equipment data establishes the actual isolation and operating requirements.

## How to read it

- Distinguish isolation capability from load interruption and automatic tripping.
- The qualifier does not give isolation clearances or an equipment rating.

## Information to show or reference

- Identify the associated device, circuit or diagram boundary.
- Distinguish isolation capability from load interruption and automatic tripping.
- Cross-reference the equipment data, terminal mapping or operating-state legend needed to interpret the form.

## Important distinction

The qualifier does not give isolation clearances or an equipment rating.

## Facts

- Reference scope: Specific public IEC-context family form
- Publisher reference token: Q070103 (Autodesk token; not a verified IEC database ID)
- Information added: Distinguish isolation capability from load interruption and automatic tripping.
- 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.