# Capacitor buffer module

Canonical URL: https://eloragrid.ai/symbols/capacitor-buffer-module
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: BUFFER CAP
Drawing use: SLD, Schematic
Reference families: Manufacturer

A capacitor buffer module stores energy for a documented short supply-interruption duty.

## What it represents

A capacitor buffer module stores energy for a documented short supply-interruption duty. The drawing identifies its DC connection and monitoring interface without implying battery-like long-duration autonomy.

## How to read it

- Read buffer time at the actual connected load from the selected module data.
- 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 DC voltage
- Reference load-dependent buffer time
- Show status contacts

## Important distinction

Capacitor buffering and battery-backed UPS storage have different documented capabilities.

## 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

- [DC UPS, AC UPS and capacitor buffer modules](https://www.phoenixcontact.com/en-gb/products/uninterruptible-power-supplies-ups) — 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.