A cooker switch (also called a cooker control unit) isolates your cooker, oven or hob from the mains so it can be switched off safely. Getting the rating and type right matters for safety and for passing inspection under BS 7671 (the 18th Edition Wiring Regulations).
45A or 32A: which rating do I need?
Match the switch to the circuit and appliance load. Most family cookers and dual ovens draw enough current to need a 45A switch on a dedicated radial circuit. A compact single oven or hob under roughly 7.2kW can sometimes run on a 32A circuit, but 45A is the common, future-proof choice. If in doubt, your electrician will size it from the appliance rating plate and the cable.
| Option | Best for |
|---|---|
| 45A double pole, no socket | Most cookers/ovens; clean look, no extra socket |
| 45A double pole with 13A socket | Where you also want a worktop socket nearby |
| 32A circuit | Small single ovens/hobs only, on a suitably rated circuit |
With or without a socket?
A cooker switch with an integrated 13A socket gives you a handy worktop outlet. Note that newer wiring guidance discourages siting sockets directly above a hob, so many installers now choose the version without a socket, or place a separate socket to the side.
Where should the cooker switch go?
Under BS 7671 the switch should be readily accessible, typically within 2 metres of the appliance, and not directly above the hob where a cable or your arm would cross the hotplates. A position to one side at worktop height is ideal.
Can I fit it myself?
A cooker circuit is a fixed-wiring job and is notifiable work under Part P in England and Wales. It should be installed or certified by a qualified electrician. You can choose and buy the switch yourself, then have it fitted.
FAQs
Do I need 45A or 32A? Most full-size cookers need 45A on a dedicated circuit; only small single ovens/hobs suit 32A. Your electrician sizes it from the appliance and cable.
Single or double pole? Cooker switches are double pole, which isolates both live and neutral for safe maintenance, the correct choice for a cooker.
Cooker switch with or without a socket? Either is fine; pick a socket version only if you want a worktop outlet, and avoid siting it above the hob.
How far from the cooker? Readily accessible and usually within about 2 metres, to one side rather than above the hotplates.
Can I install it myself? No, it is notifiable fixed-wiring work; use a qualified electrician.
Shop the range at Kent Traders
Fitting or replacing a cooker circuit? We stock 45A cooker switches and control units from BG and leading UK brands. Browse our UK trade range:
Shop cooker switches
