# ANSI/IEEE relay coil symbol

Canonical URL: https://eloragrid.ai/symbols/ansi-relay-coil
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: Coil
Drawing use: Schematic
Reference families: IEEE / ANSI, Manufacturer

## Symbol convention

Convention: IEEE / ANSI
Form: Autodesk IEEE-oriented Relays and Contacts functional form
Autodesk explicitly publishes this block under IEEE Symbol Preview. The counterpart is the matching functional concept; no equivalence of every detailed standard graphic is asserted.
Related representation: [Relay coil](https://eloragrid.ai/symbols/relay-coil)

IEEE-oriented graphical reference for relay coil, with public vendor evidence and drawing-reading notes.

## What it represents

The relay-coil form marks the operating element associated with separately referenced contacts. Control supply and coil terminals are traced as one circuit, while the contacts can switch different supplies elsewhere on the schematic.
This is a convention-specific lookup based on the publisher's IEEE-labelled preview. The geometry here is independently drawn to explain the connection or operation; it is not a certified reproduction of the standard graphic.

## How to read it

- Use the device tag to gather all associated contacts.
- Read the selected library and the project legend together. A vendor block identifier is meaningful within its named library and is not a universal standard-symbol code.

## Information to show or reference

- State coil voltage/type
- Identify coil terminals
- Provide contact cross-references

## Important distinction

A relay operating element is different from one of its switched contacts, even when both share the same tag.

## Facts

- Convention evidence: Autodesk IEEE Symbol Preview — Relays and Contacts
- Public vendor block name: HCR1 (Autodesk identifier; not an IEEE symbol number)
- Standards context: IEEE/ANSI 315-1975 covers diagram graphics. IEEE lists this edition as Inactive-Reserved.
- Artwork scope: Original functional illustration; exact standard glyph and compliance are not certified

## Public references

- [Autodesk IEEE Symbol Preview — Relays and Contacts](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F8EAC387-53CF-45FE-BE6A-C0C8FB3C1B22.htm) — Autodesk. Exact public IEEE-oriented category page verifying the component name and vendor block identifier.
- [IEEE/ANSI 315-1975: graphic symbols for electrical and electronics diagrams](https://standards.ieee.org/ieee/315/515/) — IEEE Standards Association. Graphic-symbol standards context and official status; not a source of reproduced artwork.

## 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.