# Extract fan plan mark

Canonical URL: https://eloragrid.ai/symbols/iec-extract-fan-plan-mark
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: EF
Drawing use: GA
Reference families: IEC

## Symbol convention

Convention: IEC
Form: Extract fan
IEC 60617 installation-plan style (architectural and topographical installation symbols); independently drawn, not certified IEC geometry or a database identifier.

Plan mark for a wall or ceiling extract fan, drawn as a fan circle with an outward airflow arrow.

## In plain English

### What does Extract fan plan mark mean?

Extract fans in bathrooms, kitchens and plant rooms are drawn as a circle containing fan blades or a cross, with an arrow showing airflow out of the room. The symbol is often linked to a light switch, an overrun timer or a humidistat.

### A simple example

The electrician needs to know the control method because it affects wiring: a fan run from the lighting circuit with an overrun timer needs a switched and a permanent live, while a humidistat fan may only need a permanent supply. The symbol does not state airflow rate or duct size, which are mechanical design items.

### What the drawings help you do

Read the control method: switched, timer overrun, humidistat or continuous. Check for an isolator or fused connection unit. A ceiling sweep fan circulates air; an extract fan removes it to outside.

### This particular reference

Plan mark for a wall or ceiling extract fan, drawn as a fan circle with an outward airflow arrow. A ceiling sweep fan circulates air; an extract fan removes it to outside.

### Terms

- Schematic: A drawing showing function and connections rather than physical appearance.

Concept diagram: Identify the device and form → Read the connections and state → Check the equipment reference
A guide to reading this reference. The original symbol illustration and its drawing notes appear below; these boxes are not a wiring diagram.

- [IEC graphical symbols for diagrams](https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/)


## What it represents

Extract fans in bathrooms, kitchens and plant rooms are drawn as a circle containing fan blades or a cross, with an arrow showing airflow out of the room. The symbol is often linked to a light switch, an overrun timer or a humidistat.
The electrician needs to know the control method because it affects wiring: a fan run from the lighting circuit with an overrun timer needs a switched and a permanent live, while a humidistat fan may only need a permanent supply. The symbol does not state airflow rate or duct size, which are mechanical design items.

## How to read it

- Read the control method: switched, timer overrun, humidistat or continuous.
- Check for an isolator or fused connection unit.

## Information to show or reference

- State control method.
- Show isolator location.
- Coordinate duct route with mechanical drawings.

## Important distinction

A ceiling sweep fan circulates air; an extract fan removes it to outside.

## Facts

- Airflow: Out of the room, shown by arrow
- Common control: Overrun timer or humidistat
- Exact standard graphic: Not reproduced here; confirm the form against IEC 60617 and the project legend

## Public references

- [IEC graphical symbols for diagrams](https://tc3.iec.ch/tc-activity/graphical-symbols-for-diagrams/) — IEC. IEC graphical symbol context; independently drawn here.

## 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.