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Extension Leads & Cable Reels

Extension leads and cable reels take mains power beyond the reach of a wall socket. This page covers extension leads with gang sizes such as 2, 4 and 6, surge-protected and switched versions, child protected leads, a remote-control lead with USB charging sockets and 1 gang trailing sockets, plus 4-gang cable reels with thermal cut-outs for longer runs. Check the gang count, cable length and protection before you choose.

Choosing Extension Leads & Cable Reels

Count the sockets you need, measure the distance to the wall outlet, then decide on protection and extra features.

Extension leads

The Mercury 430.003UK is a typical 4-gang lead on a 2.0m cable, with keyhole slots for wall mounting and 100% copper cables, and it conforms to BS1363/A. Other sizes include the rewireable 1 gang 429.733UK, the 2 gang 429.767UK, the 6 gang 430.011UK and the 8 gang 429.797UK. The 430.007UK has individual switches. For making up a lead, the 429.855UK is a 13A trailing socket with a cord grip.

Surge protection and child safety

A surge-protected lead guards sensitive electronic devices against surges and spikes. The 430.009UK conforms to BS1363/A and BS5733 and is tested to IEC61051. The Knightsbridge 2004S2M uses L-N surge protection with 2 MOVs and a gas tube arrestor and meets BS 5733 and EN 61643. Its sibling, the 20042M, has 4 child protected sockets, a neon indicator and angled socket edges to prevent tipping.

Remote control and USB

The 429.952UK is a 3 gang lead with individual remote control of its sockets, a remote range of up to 30m, 2 USB-A and 1 USB-C charging sockets, and overload, over current and surge protection.

Cable reels

The Mercury 4-gang cable reels run from 5m to 25m, and all of them have a thermal cut-out to prevent overloading. The 429.872UK has an enclosed drum that protects the cable when it is not in use. The 429.877UK has an open drum and orange cable for visibility on a sturdy steel frame.

ModelTypeCableDetail
429.733UK1 gang, rewireable5m13A
429.767UK2 gang3mNon-rewireable
430.009UK4 gang, surge protected2.0mBS5733
20042M4 gang, child protected2mNeon indicator
430.011UK6 gang2.0mBS1363/A
429.797UK8 gang, surge protected2.0m8 neon switches
429.877UK4-gang reel25mSteel frame

Mercury makes most of the range.

Related categories

See wall-mounted plug sockets, app-controlled smart plugs and sockets, the wider wiring accessories range and the Mercury range.

Brands we stock in Extension Leads & Cable Reels

Knightsbridge, Mercury and QTX.

Frequently asked questions

How does a remote control extension lead work?

A remote control extension lead has sockets that switch on and off with a handheld remote. The remote sends a wireless signal to a receiver inside the lead. This is handy for appliances behind furniture or in hard-to-reach places, such as a TV or games console. Some models add surge protection and USB charging ports. The range here includes a remote control lead with USB ports.

What is an RCD extension lead?

An RCD extension lead has a residual current device built into its plug or lead, which cuts the power if current leaks to earth, for example through a damaged cable. It adds protection when using power tools or garden equipment outdoors, particularly where the socket circuit is not already RCD protected. Press the test button before use to check it trips.

What is a standing extension lead?

A standing extension lead, often called a power tower, stands upright on a desk or floor with its sockets arranged around a vertical body. It takes up less desk space than a long flat lead and keeps plugs easy to reach. Some towers add USB charging ports. The range here includes surge-protected towers with child-protected sockets.

What is a wind up extension lead?

A wind up extension lead, also called a cable reel, stores its cable on a drum with a handle so it can be wound in after use. It suits garages, workshops and outdoor jobs that need a long run. Unwind the cable fully for heavy loads, as a coiled cable can overheat, and choose a reel with a thermal cut-out. The range here includes reels in several lengths.

Can you plug an extension lead into another extension lead?

No, plugging one extension lead into another, known as daisy-chaining, is not recommended. It makes overloading the first lead and its plug more likely and adds extra connections that can work loose or overheat. Use a single lead that is long enough for the job, with enough sockets, and keep the total load within its rating.

Why buy from West Midlands Electrics

  • Established 1975
  • Birmingham trade counter
  • UK-only supply

Written by the West Midlands Electrics technical team

Updated