# ANSI/IEEE polarised relay coil symbol

Canonical URL: https://eloragrid.ai/symbols/ansi-polarised-relay-coil
Publisher: Elora Grid
Updated: 2026-10-14
Lookup label: K POL
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: [Polarised relay coil](https://eloragrid.ai/symbols/polarised-relay-coil)

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

## What it represents

The polarised-relay form indicates a documented sensitivity to input polarity or direction. The schematic's terminal labels and polarity reference must remain intact when the element is rearranged, because page orientation does not establish electrical polarity.
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 terminal data to determine the operating polarity.
- 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

- Mark input polarity
- State operating range
- Reference output behaviour

## Important distinction

Polarised operation differs from the polarity restriction introduced solely by a suppression diode on an ordinary relay coil.

## Facts

- Convention evidence: Autodesk IEEE Symbol Preview — Relays and Contacts
- Public vendor block name: HCR1POL (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.