# Cooker control unit

Canonical URL: https://eloragrid.ai/symbols/iec-cooker-control-unit
Publisher: Elora Grid
Updated: 2026-10-28
Lookup label: CCU
Drawing use: GA
Reference families: IEC

## Symbol convention

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

Plan mark for the double-pole control switch and outlet serving a fixed cooking appliance.

## In plain English

### What does Cooker control unit mean?

A cooker control unit is a high-current double-pole switch, sometimes with an auxiliary socket outlet, that controls and isolates a fixed cooker or hob. Plan legends usually draw a switch box with the letters CCU or a cooker mark, placed within reach of the appliance but not above the hob.

### A simple example

The symbol tells the electrician to run a dedicated radial circuit sized for the appliance, often 32 A or larger, and to install a separate cooker connection plate behind the appliance. Two symbols are often shown together: the control unit on the splashback and the connection outlet low behind the cooker. It does not show the cable size or the diversity used in the design. Those belong in the circuit schedule.

### What the drawings help you do

Look for a paired connection plate behind the appliance position. Check whether the unit includes an auxiliary outlet. A general isolator mark has no auxiliary outlet and is not tied to a cooking appliance; the cooker control unit is a dedicated appliance accessory.

### This particular reference

Plan mark for the double-pole control switch and outlet serving a fixed cooking appliance. A general isolator mark has no auxiliary outlet and is not tied to a cooking appliance; the cooker control unit is a dedicated appliance accessory.

### Terms

- Terminal: An identified point where a conductor connects.
- Rating: A value stating the conditions for which equipment is specified.
- 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/)
- [Elementary switching devices](https://www.electrical-installation.org/enwiki/Elementary_switching_devices)
- [Electrical installation design methodology and references](https://www.electrical-installation.org/enwiki/General_rules_of_electrical_installation_design)


## What it represents

A cooker control unit is a high-current double-pole switch, sometimes with an auxiliary socket outlet, that controls and isolates a fixed cooker or hob. Plan legends usually draw a switch box with the letters CCU or a cooker mark, placed within reach of the appliance but not above the hob.
The symbol tells the electrician to run a dedicated radial circuit sized for the appliance, often 32 A or larger, and to install a separate cooker connection plate behind the appliance. Two symbols are often shown together: the control unit on the splashback and the connection outlet low behind the cooker. It does not show the cable size or the diversity used in the design. Those belong in the circuit schedule.

## How to read it

- Look for a paired connection plate behind the appliance position.
- Check whether the unit includes an auxiliary outlet.

## Information to show or reference

- State switch rating and auxiliary outlet requirement.
- Show the connection plate position.
- Tag the dedicated circuit.

## Important distinction

A general isolator mark has no auxiliary outlet and is not tied to a cooking appliance; the cooker control unit is a dedicated appliance accessory.

## Facts

- Switching: Double-pole, rated for the cooker circuit
- Typical position: Beside, not above, the hob
- 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 committee context for graphical symbols used in diagrams and installation documents; not a source of reproduced artwork.
- [Elementary switching devices](https://www.electrical-installation.org/enwiki/Elementary_switching_devices) — Schneider Electric — Electrical Installation Guide. Explains elementary switching functions such as isolation, control and functional switching.
- [Electrical installation design methodology and references](https://www.electrical-installation.org/enwiki/General_rules_of_electrical_installation_design) — Schneider Electric — Electrical Installation Guide. Installation design methodology context: circuits, outlets and final distribution are planned before symbols are placed.

## 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.