Collection: Fused Connection Units

Fused Connection Units FAQ's

What is a fused connection unit?


A fused connection unit, or FCU, is used to provide a fused connection for a fixed electrical appliance rather than connecting it through a standard plug socket. They're commonly used for appliances such as boilers, heaters and extractor fans, depending on the installation.

What's the difference between a switched and unswitched fused connection unit?


A switched FCU has a switch on the unit that allows the connected appliance to be turned off locally. An unswitched FCU doesn't have this control, so the right option will depend on how the appliance and circuit are set up.

Which type of fused connection unit do I need?

The right type depends on the appliance, how it is connected, and the requirements of the electrical installation. A switched FCU allows you to turn the connected appliance off at the unit, while an unswitched FCU does not have a local switch. If you're unsure which type you need, we recommend checking with a qualified electrician before ordering.

Do fused connection units need to be installed by an electrician?


As an FCU forms part of the fixed electrical installation, it should be fitted correctly for the appliance and circuit it's being used with. We recommend using a qualified electrician to check compatibility and carry out the installation.