# Disconnector auxiliary NC contact

Canonical URL: https://eloragrid.ai/symbols/disconnector-auxiliary-nc-contact
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: DS AUX NC
Drawing use: SLD, Schematic
Reference families: IEC, Manufacturer

A normally-closed disconnector auxiliary contact is closed in the documented unactuated reference state.

## What it represents

A normally-closed disconnector auxiliary contact is closed in the documented unactuated reference state. It can be used in indication or interlocking circuits while remaining separate from the main power path.

## How to read it

- Confirm whether the legend defines normal state as open, closed or an explicitly stated mechanism position.
- The preview is an original explanation of this function. Match the actual drawing convention to its legend and the selected equipment documentation.

## Information to show or reference

- Document reference state
- Identify contact rating
- Cross-reference main disconnector

## Important distinction

Normally closed describes a contact state, not the normal operating status of the feeder.

## Facts

- Drawing role: Switching path
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Public vendor block reference: HDS22AUX, VDS22AUX (Autodesk identifiers; not IEC symbol numbers)
- Identifier status: The short label is a functional lookup label, not an assigned IEC or IEEE symbol number. Any separately listed Autodesk code is a verified vendor block name.

## Public references

- [AutoCAD Electrical: Additional circuit-breaker poles](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-8B9070E1-A978-429D-A552-27BEFAE1C60E.htm) — Autodesk. Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
- [AutoCAD Electrical: Fusible disconnects](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-FE7E6B30-F585-41F4-9F66-215ACD95A36D.htm) — Autodesk. Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.

## 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.