# Series-excited DC motor

Canonical URL: https://eloragrid.ai/symbols/series-excited-dc-motor
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: M DC SERIES
Drawing use: SLD, Schematic
Reference families: IEC, Manufacturer

A series-excited DC motor connects its documented field winding in series with the armature circuit.

## What it represents

A series-excited DC motor connects its documented field winding in series with the armature circuit. Both winding and armature terminals need to remain identifiable in expanded schematics.

## How to read it

- Follow the field current through the armature path.
- 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 series field connection
- Identify armature terminals
- Reference starting/control arrangement

## Important distinction

A series field and a shunt field have different circuit connections.

## Facts

- Drawing role: Rotating or linear load
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- Public vendor block reference: HMO1M7, VMO1M7 (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: DC motors](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-F5F3061F-E0DE-4A9A-BE88-C017545A9A36.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.