What is an unswitched fused spur used for?
Jessica Cortez
Updated on March 30, 2026
An unswitched fused connection unit could be used for any appliance that has its own ON/OFF switch, such as a washing machine, or a device that operates continuously and must be difficult to turn off, such as a fire alarm or security lights.
What is an unswitched fuse?
Non-switched or unswitched fused spurs do not feature a manual button. Fused non-switched spurs are typically used with devices such as freezers or security lights that need to operate continuously, with no need for users to be able to turn off the current in most circumstances.
What terminals of the fused spur unit would you connect the flex of an appliance to?
The flex for the appliance should be connected to the load terminals. Strip and prepare the ends of the flex (see Preparing the cable for connection). Connect the appliance flex to the 3 terminals. The FCU has three Load screw terminals marked L (Live), N (Neutral) and E or (Earth).
Can I fit a fused spur?
As long as the job isn’t within a ‘special location’ such as a bathroom or outdoors, you’re also allowed to install additional new light fittings, switches, sockets and even add a single fused spur to an existing circuit (a ‘spur’ is a new cable and socket run as a branch from an existing socket on the ring main).
What is a flex outlet used for?
Flex Outlet Plates are also known as Cable Outlet Sockets. These plates are used when wiring an appliance typically under a unit or worktop where the isolator is located elsewhere. They usually have a hole in the front plate and each plate has 4 terminals on the back that wire via a screw connector.
What appliances need a fused spur?
Fused spurs are commonly used as an alternative to a conventional socket, for the installation of powerful electrical appliances that can be installed without a plug, such as ovens, washing machines, electric heaters, dishwashers, fridges, and so on.
What is fuse spur?
A fused spur is a switch that’s used to isolate electrical equipment from the mains supply. You’ll typically find them on the left or right of your oven or hob, and next to or underneath your heater.
Can I put 2 double sockets on a spur?
A spur can be connected to an existing socket, on either a ring main or a radial circuit, providing that socket does not already have a spur. That is only one spur per socket is allowed and the number of spurs must not exceed the number of sockets.
Can you change a single socket to a fused spur?
You’ll need to dig the box out and replace it with a single, or put a bigger dual box in to house an FCU + a single socket.
Does a tumble dryer need a fused spur?
a washing machine & tumble dryer should not be used on the same spur at the same time. if they are both 3KW elements then that gives you 26.08Amps on full load. the chances are they are both just over 13Amps added together ie. a 1.5KW tumble dryer and a 2KW washing machine takes it over.
Where to buy switched flex outlet fused Spurs?
Switched Flex Outlet Fused Spurs | Switches & Sockets | Screwfix.com Buy Switched Flex Outlet Fused Spurs at Screwfix.com. Choose from top trade brands. Thousands of products. 60 days free credit available.
Can I power an extra socket from a fused spur?
The ‘flex outlet’ part of it is optional. You can power an extra socket with fixed wiring. It is a fused spur regardless of anything. 6 of 6 found this answer helpful.
Can I install a fused spur in Zone 2 of bathroom?
It is not possible to install this fused spur in zone 2 of a bathroom. According to table 8.1 of the OSG for Zone 2: “Only switches and sockets of SELV circuits allowed, the source being outside the zones, and shaver supply units complying with BS EN 61558-2-5 if fixed where direct supply is unlikely.”
What is a flex outlet?
A flex outlet is a wall outlet which has a flexible cable permanently wired into it instead of being fitted with a plug to go into a socket outlet. Flex outlets have their own fuse holder to replace the fuse which would normally be fitted into the plug if a fused plug were used instead.