# Motor short-circuit fuse

Canonical URL: https://eloragrid.ai/symbols/motor-short-circuit-fuse
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: aM
Drawing use: SLD, Schematic
Reference families: IEC, Manufacturer

An aM fuse-link is a partial-range fuse used for motor-circuit short-circuit protection.

## What it represents

An aM fuse-link is a partial-range fuse used for motor-circuit short-circuit protection. The drawing must identify the separate overload protective function associated with the motor feeder.

## How to read it

- Trace the overload relay as a separate element in the control and trip circuits.
- 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

- State aM rating
- Show associated overload protection
- Link motor starting-duty data

## Important distinction

An aM fuse does not provide the same full-range overload protection as a general-purpose gG fuse.

## Facts

- Drawing role: Fused circuit
- Representation scope: Functional concept; not an official standard graphic or a product footprint
- 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

- [Fuse and neutral-link symbols](https://help.autodesk.com/cloudhelp/2021/ENU/AutoCAD-Electrical/files/GUID-E540AE83-CEE1-4CA9-B43C-B19004025EAA.htm) — Autodesk. Public documentation of this equipment function or named vendor variant; the illustration is independently authored and is not the source graphic.
- [Elementary switching devices](https://www.electrical-installation.org/enwiki/Elementary_switching_devices) — Schneider Electric — Electrical Installation Guide. 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.