# Analog current signal isolator

Canonical URL: https://eloragrid.ai/symbols/analog-current-signal-isolator
Publisher: Elora Grid
Updated: 2026-10-13
Lookup label: ISO I-I
Drawing use: SLD, Schematic
Reference families: Manufacturer

A current signal isolator transfers a documented analog current input to an output while providing the specified electrical separation.

## What it represents

A current signal isolator transfers a documented analog current input to an output while providing the specified electrical separation. Signal input, output and auxiliary supply are distinct terminal groups.

## How to read it

- Determine active and passive current-loop roles at both interfaces.
- 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 input/output range
- Show separate commons
- Reference supply and isolation rating

## Important distinction

Signal isolation is different from changing the power-system voltage with a transformer.

## 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

- [Analog current signal isolation](https://www.phoenixcontact.com/en-us/products/signal-conditioner-mcr-c-i-i-0b-0b-dci-2810955) — 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.