# Relay coil with diode and LED

Canonical URL: https://eloragrid.ai/symbols/relay-coil-with-diode-and-led
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: K D LED
Drawing use: Schematic
Reference families: IEC, Manufacturer

A relay assembly with diode and LED combines coil transient suppression and a visible energisation indicator.

## What it represents

A relay assembly with diode and LED combines coil transient suppression and a visible energisation indicator. The schematic must identify both auxiliary functions without treating the LED as proof of contact movement.

## How to read it

- The indicator reports its own electrical condition, not necessarily the mechanical contact state.
- 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

- Show coil polarity
- Identify indicator circuit
- Reference actual contact feedback

## Important distinction

An illuminated coil indicator is different from an auxiliary contact confirming device position.

## Facts

- Drawing role: Relay operation
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Public vendor block reference: HCR1K35, VCR1K35 (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: Relay suppression components](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-AF7C83A4-33F4-4144-94BE-4C5F2F448FB8.htm) — Autodesk. Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
- [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.