# AC-to-DC power supply

Canonical URL: https://eloragrid.ai/symbols/ac-to-dc-power-supply
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: PSU AC-DC
Drawing use: SLD, Schematic
Reference families: Manufacturer

An AC/DC power supply converts a documented AC input to a DC output for control or auxiliary circuits.

## What it represents

An AC/DC power supply converts a documented AC input to a DC output for control or auxiliary circuits. Its input protection, DC common and any PE connection are shown separately.

## How to read it

- Identify the DC output polarity and any intentional connection to earth.
- 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 AC input range
- State DC output rating
- Show input protection and PE

## Important distinction

A regulated power supply includes functions beyond a bridge rectifier alone.

## Facts

- Drawing role: Energy conversion
- 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

- [AC/DC power supplies and DC/DC converters](https://www.phoenixcontact.com/en-gb/products/power-supplies/power-supplies-with-maximum-functionality) — Phoenix Contact. 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.