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    Electrical4less Reviews 4.9 Based on 1530 reviews
    UK Mainland Free Delivery £75 + VAT
    30 Day Return Policy
    Next Day Delivery Cut Off Time 3PM*

    6491 Single Core Cable

    6491B Single Core LSZH Cable

    6491B Single Core LSZH Cable (47)

    6491X Single Core PVC Cable

    6491X Single Core PVC Cable (53)

    6491B Single Core Conduit Cable 16mm LSZH Green / Yellow - 100m

    6491B Single Core Conduit Cable 16mm LSZH Green / Yellow – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B16G/Y100
    £245.44
    6491B Single Core Conduit Cable 16mm LSZH Black - 50m

    6491B Single Core Conduit Cable 16mm LSZH Black – 50m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B16BLK50
    £122.72
    6491B Single Core Conduit Cable 16mm LSZH Black - 100m

    6491B Single Core Conduit Cable 16mm LSZH Black – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B16BLK100
    £245.44
    6491B Single Core Conduit Cable 16mm LSZH Grey - 50m

    6491B Single Core Conduit Cable 16mm LSZH Grey – 50m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B16GRY50
    £122.72
    6491B Single Core Conduit Cable 16mm LSZH Grey - 100m

    6491B Single Core Conduit Cable 16mm LSZH Grey – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B16GRY100
    £245.44
    6491B Single Core Conduit Cable 25mm LSZH Green / Yellow - 50m

    6491B Single Core Conduit Cable 25mm LSZH Green / Yellow – 50m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B25G/Y50
    £187.66
    6491B Single Core Conduit Cable 25mm LSZH Green / Yellow - 100m

    6491B Single Core Conduit Cable 25mm LSZH Green / Yellow – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491B25G/Y100
    £283.00
    6491X Single Core Conduit Cable 1.5mm PVC Brown - 100m

    6491X Single Core Conduit Cable 1.5mm PVC Brown – 100m
    1 In Stock
    More available within 1 - 3 working days*
    SKU: 6491X1.5BR100
    £20.55
    6491X Single Core Conduit Cable 1.5mm PVC Blue - 100m

    6491X Single Core Conduit Cable 1.5mm PVC Blue – 100m
    1 In Stock
    More available within 1 - 3 working days*
    SKU: 6491X1.5BL100
    £20.55
    6491X Single Core Conduit Cable 1.5mm PVC Green / Yellow - 100m

    6491X Single Core Conduit Cable 1.5mm PVC Green / Yellow – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X1.5G/Y100
    £20.55
    6491X Single Core Conduit Cable 1.5mm PVC Black - 100m

    6491X Single Core Conduit Cable 1.5mm PVC Black – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X1.5BK100
    £20.55
    6491X Single Core Conduit Cable 1.5mm PVC Grey - 100m

    6491X Single Core Conduit Cable 1.5mm PVC Grey – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X1.5GR100
    £20.55
    6491X Single Core Conduit Cable 2.5mm PVC Brown - 100m

    6491X Single Core Conduit Cable 2.5mm PVC Brown – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X2.5BR100
    £32.48
    6491X Single Core Conduit Cable 2.5mm PVC Blue - 100m

    6491X Single Core Conduit Cable 2.5mm PVC Blue – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X2.5BL100
    £32.48
    6491X Single Core Conduit Cable 2.5mm PVC Green / Yellow - 100m

    6491X Single Core Conduit Cable 2.5mm PVC Green / Yellow – 100m
    1 In Stock
    More available within 1 - 3 working days*
    SKU: 6491X2.5G/Y100
    £32.48
    6491X Single Core Conduit Cable 2.5mm PVC Black - 100m

    6491X Single Core Conduit Cable 2.5mm PVC Black – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X2.5BK100
    £32.48
    6491X Single Core Conduit Cable 2.5mm PVC Grey - 100m

    6491X Single Core Conduit Cable 2.5mm PVC Grey – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X2.5GR100
    £32.48
    6491X Single Core Conduit Cable 4mm PVC Brown - 50m

    6491X Single Core Conduit Cable 4mm PVC Brown – 50m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X4.0BR50
    £27.91
    6491X Single Core Conduit Cable 4mm PVC Brown - 100m

    6491X Single Core Conduit Cable 4mm PVC Brown – 100m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X4.0BR100
    £49.75
    6491X Single Core Conduit Cable 4mm PVC Blue - 50m

    6491X Single Core Conduit Cable 4mm PVC Blue – 50m
    Delivery usually within 1 - 3 working days*
    SKU: 6491X4.0BL50
    £27.91
    Single Core Cables: 6491X PVC and 6491B LSZH
    6491X PVC Cables

    6491X PVC cables are ideal for general fixed wiring. Electricians commonly use them in residential, commercial, and industrial settings for installations within conduits or trunking systems.

    Key Features
    • PVC Insulation:
      The PVC insulation offers strong mechanical protection against moisture, abrasion, and general wear. However, it releases smoke and toxic fumes during a fire.
    • Voltage Rating:
      These cables handle up to 450/750V, making them suitable for low-voltage power and lighting circuits.
    • Temperature Range:
      They perform well in environments up to 70°C, ensuring reliable operation indoors.
    • Colour Options:
      Available in multiple colours such as brown, blue, black, grey, and green/yellow, they allow easy identification of conductors.
    Applications
    • Conduit and Trunking Systems: Suitable for enclosed wiring in walls and ceilings.
    • Lighting and Power Circuits: Commonly used in both homes and businesses.
    • Internal Appliance Wiring: Safe for wiring within appliances when enclosed for protection.
    6491B LSZH Cables

    6491B LSZH cables prioritise safety by reducing smoke and toxic gas emissions during a fire. They are a better choice for environments where air quality is critical during emergencies.

    Key Features
    • LSZH Insulation:
      Unlike PVC, LSZH insulation minimizes harmful emissions during combustion. This feature improves visibility and reduces health risks during evacuation.
    • Voltage Rating:
      Rated for 450/750V, they are suitable for the same low-voltage applications as PVC cables.
    • Temperature Range:
      They operate in conditions up to 70°C, ensuring reliability in various environments.
    • Colour Options:
      The same colour coding as 6491X cables simplifies conductor identification.
    Applications
    • Public Buildings: Ideal for schools, hospitals, and offices where safety is critical.
    • Enclosed Spaces: Suitable for tunnels, basements, and transport hubs.
    • Fire-Sensitive Areas: Used in installations requiring reduced smoke and toxic emissions.
    Comparison: 6491X PVC vs. 6491B LSZH
    Feature 6491X PVC 6491B LSZH
    Insulation Material Polyvinyl Chloride (PVC) Low Smoke Zero Halogen (LSZH)
    Smoke and Fume Emissions Releases more smoke and toxic gases Emits minimal smoke and toxic gases
    Applications General-purpose wiring in conduit or trunking Environments needing reduced emissions during a fire
    Cost Economical Slightly higher for added safety
    Compliance with Standards

    Both 6491X and 6491B cables comply with BS EN 50525-2-31, ensuring their suitability for fixed wiring in the UK. Additionally, they meet the IET Wiring Regulations Eighteenth Edition BS 7671:2018+A2:2022, which ensures safety and performance in installations.

    Choosing the Right Cable

    To make the right choice:

    • Use 6491X PVC cables for general-purpose wiring where fire safety is not a primary concern.
    • Opt for 6491B LSZH cables in public spaces, enclosed areas, or locations where reducing smoke and toxic emissions is essential during a fire.
    Shop Single Core Cables at Electrical4Less

    At Electrical4Less, we stock a full range of Single Core Cables, including 6491X PVC and 6491B LSZH options. Our competitive pricing, fast delivery, and expert advice ensure you find the right cable for every project.

    Visit us online or stop by our Fulham trade counter for more information and support. We’re here to simplify your electrical needs






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    Next Day Delivery

    Cut-Off Time and Order Information
    To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £150 + VAT (double our standard carriage-paid order value of £75 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

    In Stock Delivery Policy

    Free Next-Day Delivery Over £75 + VAT:
    Orders above £75 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.

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    For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.

    Backorder Delivery Policy

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    This means we need to source the product from our supplier before sending it to you. The estimated dispatch time is displayed on each product page.

    Out of Stock at Supplier:
    If an item is unavailable at the supplier, we will contact you promptly. You’ll have the option to choose an alternative product or request a full refund.

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