# Early-break normally-closed contact

Canonical URL: https://eloragrid.ai/symbols/early-break-normally-closed-contact
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: NC EARLY
Drawing use: Schematic
Reference families: IEC, Manufacturer

An early-break NC contact opens earlier in a documented mechanical sequence than associated contacts.

## What it represents

An early-break NC contact opens earlier in a documented mechanical sequence than associated contacts. It may participate in interlocks whose operation depends on this order.

## How to read it

- Determine which other contact transitions are used as the reference sequence.
- 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

- Link common operator
- Label early opening
- Reference contact sequence

## Important distinction

Early break is a mechanical sequence annotation, not an instantaneous protection threshold.

## Facts

- Drawing role: Contact state
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Public vendor block reference: HCR227F, VCR227F (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

- [Relays and contacts: public symbol reference](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-011C62B8-9EC8-485C-B47D-B22A3F7B7574.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.