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Best Ethernet Cable Brand UK: A Buyer's Guide for 2026
Not all Ethernet cable is created equal, and the brand printed on the box tells you a lot more than you might think. Conductor material, fire safety rating, shielding and manufacturer warranty all vary significantly between brands — and choosing the wrong one can mean a network that fails to perform, breaches building regulations, or simply doesn't last. This guide compares the main Ethernet cable brands stocked by Kenable — Excel, XeLAN, SFX, Kenable's own-brand range, and Mercury — so you can pick the right cable for your project, whether it's a domestic install, a commercial fit-out, or a budget home office upgrade.
Factors to Consider When Choosing a Cable Brand
- Conductor material: Solid bare copper carries data and Power over Ethernet (PoE) reliably over long distances. Copper-clad aluminium (CCA) is cheaper but has higher resistance, meaning more signal loss, poorer PoE performance and non-compliance with TIA/ISO cabling standards.
- CPR Euroclass fire rating: Since the Construction Products Regulation (CPR) came into force, cables installed in UK buildings must carry a Euroclass rating (Eca, Dca, Cca, B2ca, etc.). Higher classes (B2ca is the highest commonly available for copper cable) mean lower flame spread and smoke toxicity — essential for public and commercial buildings.
- Jacket type: LSOH/LSZH (Low Smoke Zero Halogen) jackets release less toxic smoke in a fire compared with standard PVC, making them the default choice for most commercial and multi-occupancy installs.
- Shielding: U/UTP (unshielded) is fine for most home and office use. F/FTP and S/FTP add foil and/or braid screening to reduce interference — useful near power cables, industrial equipment or in dense containment.
- Warranty and support: Premium installer brands like Excel offer extended system warranties when the full channel is installed by an approved partner using genuine components — valuable for commercial contracts but irrelevant for a DIY patch lead.
Quick rule of thumb: If PoE, long cable runs, or standards compliance matter, always choose solid bare copper. Reserve CCA cable for short, low-power, budget-conscious runs only.
Top Picks by Brand
Excel — The Premium Installer Brand
Excel is one of the UK's most trusted structured cabling brands among professional installers, largely thanks to its 25-year system warranty available when cable, patch panels and outlets are all Excel components fitted by an Excel-approved installer. It's the go-to choice for commercial and public-sector projects where certification and long-term support matter.
Excel Copper Cat6a Network Cable U/FTP Low Smoke LSOH Euroclass Dca 305m Blue
£308.29Solid bare copper Cat6a bulk reel with a Dca Euroclass fire rating and LSOH jacket. Our best-selling installation cable, ideal for structured cabling projects where certified performance is essential. Also available in other lengths.
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Excel Cat6 Patch Lead U/UTP Unshielded LSOH Blade Booted 1m Blue
£2.81Available in 2 lengths and 3 colours from £2.81 — See all variations
A factory-terminated Excel patch lead with blade boot design for snag-free removal from dense patch panels. LSOH jacket matches the fire safety profile of Excel's bulk cable, so it's the natural choice to finish an Excel-based install. Available in other lengths.
View ProductXeLAN — Highest Fire Safety Class for Public Buildings
XeLAN's Cat6A cable carries a B2ca Euroclass rating — the highest CPR fire class commonly available in copper network cable. This makes it the preferred brand for schools, hospitals, high-rise developments and other public or commercial buildings where fire regulations demand the very lowest flame spread and smoke toxicity.
XeLAN Copper Cat6A Network Cable U/FTP Low Smoke LSOH EPR: B2ca 305m Ice Blue
£195.96Solid bare copper Cat6a with B2ca fire rating and LSOH jacket — our second best-selling bulk cable. A cost-effective step up in fire performance versus Dca-rated cable, without moving to a shielded design.
View ProductSFX — Shielded Value Option
SFX offers a shielded (F/FTP) Cat6a alternative at a lower price point than Excel or XeLAN, while still using an LSZH jacket and Eca fire rating. It's a sensible choice where screening from electromagnetic interference is needed but budget is tighter, such as commercial fit-outs near power containment or industrial equipment.
SFX Cat6a F/FTP LSZH ECA 10GIG Network Copper Ethernet LAN Cable Reel 100m Blue
£97.20Solid copper Cat6a with foil-screened (F/FTP) construction, LSZH jacket and Eca fire rating, supplied on a compact 100m reel — a good sized quantity for smaller commercial jobs or home networking projects that need shielding.
View ProductKenable — Best Value Full Copper
Kenable's own-brand range focuses on genuine solid bare copper at competitive prices, without the certification overhead of the installer brands above. Our Cat6a S/FTP reel is our top-selling bulk network cable, and the slim full-copper Cat6 patch lead is a popular budget-friendly finishing cable for desks and racks.
Cat6A S/FTP COPPER Low Smoke LSZH 10 Gigabit Network Cable Reel 305m
£243.86Available in 4 options from £44.78 — See all variations
Our best-selling Ethernet cable overall, with 53 sales to date. Solid bare copper Cat6a, fully braid-and-foil shielded (S/FTP), LSZH jacket, supporting 10 Gigabit speeds over the full 100m channel. Excellent all-rounder for home and small business installs.
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SLIM Cat6 Full Copper RJ45 Ethernet Network Patch Cable 2m Black
£1.78Available in 6 lengths and 4 colours from £1.22 — See all variations
A genuine solid copper Cat6 patch lead in a slimline design that's easier to route behind desks and in tight rack spaces than a standard round patch cable. Available in a wide range of other lengths.
View ProductMercury — Budget CCA Option
Mercury's Cat6-CCA reel is the most affordable bulk cable in our range, but it's important to understand what CCA (copper-clad aluminium) means in practice. CCA conductors have significantly higher electrical resistance than solid copper, which increases signal attenuation over distance and reduces the amount of power that can be safely delivered for PoE devices such as cameras and access points. CCA cable also does not meet TIA/ISO conductor standards for structured cabling, so it should be limited to short, low-power runs where budget is the primary concern — not for PoE, long backbone runs, or certified installations.
Indoor Ethernet Cable Reel Network LAN U/UTP CAT6-CCA GIGABIT Solid 305m Grey
£68.59Mercury's budget Cat6-CCA reel supports Gigabit speeds over short indoor runs at the lowest price point in our range. Fine for basic home networking without PoE, but not a substitute for full copper cable on standards-compliant or PoE installations.
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CCA warning: CCA cable is not standards-compliant and is unsuitable for PoE devices, cable runs approaching 100m, or any installation requiring certification. Choose solid bare copper (Excel, XeLAN, SFX or Kenable) for anything beyond basic short-run home networking.
Brand Comparison Table
| Brand | Product | Category | Conductor | Fire Class / Jacket | Best For | Price |
|---|---|---|---|---|---|---|
| Excel | Cat6a U/FTP 305m Reel | Bulk install cable | Solid bare copper | Dca / LSOH | Certified commercial installs, 25-yr warranty | £308.29 |
| Excel | Cat6 Patch Lead 1m | Patch lead | Solid bare copper | LSOH | Finishing an Excel system | £2.81 |
| XeLAN | Cat6A U/FTP 305m Reel | Bulk install cable | Solid bare copper | B2ca / LSOH | Public/commercial buildings needing top fire class | £195.96 |
| SFX | Cat6a F/FTP 100m Reel | Bulk install cable | Solid bare copper | Eca / LSZH | Shielded value option, smaller jobs | £97.20 |
| Kenable | Cat6A S/FTP 305m Reel | Bulk install cable | Solid bare copper | LSZH | Best value full copper, 10G home/office | £243.86 |
| Kenable | Slim Cat6 Patch Lead 2m | Patch lead | Solid bare copper | Standard jacket | Budget-friendly desk/rack patching | £1.78 |
| Mercury | Cat6-CCA 305m Reel | Bulk cable | Copper-clad aluminium (CCA) | Standard indoor jacket | Short, low-power, budget-only runs | £68.59 |
Installation Tips
- Always terminate solid bare copper reels with keystone jacks or patch panels rated for solid conductor — do not use tools or connectors designed for stranded patch cable.
- Keep cable runs under 90m of fixed cabling plus patch leads to stay within the 100m channel limit for Cat6/Cat6a.
- For PoE-powered devices (cameras, access points, phones), always use solid bare copper cable — never CCA — to avoid excessive voltage drop.
- Match your fire-rated cable to the building requirement first, then choose shielding based on your electromagnetic interference environment.
- If pursuing an Excel system warranty, ensure all components (cable, patch panels, outlets) are genuine Excel parts fitted by an Excel-approved installer.
Common Mistakes to Avoid
- Choosing CCA cable for PoE or long runs: the higher resistance causes voltage drop and can prevent powered devices from working reliably.
- Ignoring CPR fire ratings: commercial and public buildings have legal requirements for cable fire class — check before ordering bulk reels.
- Mixing shielded and unshielded components without proper earthing: an S/FTP or F/FTP cable needs correctly earthed shielded connectors and patch panels to work as intended.
- Assuming all "Cat6" cable is equal: conductor material, shielding and jacket type vary hugely between brands at similar-looking price points.
- Overlooking warranty requirements: some system warranties (like Excel's) only apply when the entire channel uses matching brand components and an approved installer.
Frequently Asked Questions
What is the best Ethernet cable brand in the UK?
There's no single "best" brand — it depends on your project. Excel is the top choice for certified commercial installs with warranty backing, XeLAN suits public buildings needing the highest fire safety class (B2ca), SFX offers a shielded option at a lower price, and Kenable's own-brand range gives the best value full copper cable for home and small business use.
Is copper-clad aluminium (CCA) cable safe to use?
CCA cable, such as our Mercury Cat6-CCA reel, works fine for short, low-power indoor runs but is not standards-compliant and isn't suitable for Power over Ethernet devices or cable runs approaching 100m, due to higher electrical resistance than solid copper.
Do I need LSOH or LSZH cable for my installation?
LSOH/LSZH (Low Smoke Zero Halogen) jackets are recommended for most commercial, public and multi-occupancy buildings, as they release less toxic smoke in a fire compared with standard PVC-jacketed cable. Check your local building regulations and CPR requirements before installing.
What's the difference between U/FTP, F/FTP and S/FTP cable?
U/FTP has unshielded pairs, F/FTP adds an overall foil screen, and S/FTP adds both individually foiled pairs and an overall braid screen for maximum interference protection. Shielded cable requires correctly earthed shielded connectors and patch panels to be effective.