VAT:
Quotes
  • 0
    • Electrical4less Logo
    0
    Electrical4less Reviews 4.9 Based on 1486 reviews
    UK Mainland Free Delivery £75 + VAT
    30 Day Return Policy
    Next Day Delivery Cut Off Time 3PM*

    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1878)

    Consumer Units

    Consumer Units (448)

    Circuit Protection Devices

    Circuit Protection Devices (1058)

    EV Circuit Protection

    EV Circuit Protection (107)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (120)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (90)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (173)

    Switch Gear

    Switch Gear (260)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Hager MTN132 MCB 6kA B-32

    Hager MTN132 MCB 6kA B-32
    2 in stock
    More available within 1 - 3 working days *
    SKU: MTN132
    £2.38
    WCED WPEPME08/C40 PME / PEN Fault Detection IP65 Unit 6 Mod c/w C40 RCBO /4P63A Contactor & PME Relays

    PME / PEN Fault Detection IP65 Unit 6 Mod c/w C40 RCBO /4P63A Contactor & PME Relays
    Delivery usually within 1 - 3 working days *
    SKU: WPEPME08/C40
    Quantity Discount
    Quantity Price
    1 £79.50
    2+ £77.91
    3+ £77.12
    £79.50
    WCED WMEPME10/LB PME Fault Detection Unit with Load Management 10 Mod c/w C40 RCBO Relays and SPD 1

    PME / PEN Fault Detection Unit with Load Management 10 Mod c/w C40 RCBO Relays and SPD
    Delivery usually within 1 - 3 working days *
    SKU: WMEPME10/LB
    Quantity Discount
    Quantity Price
    1 £127.40
    2+ £124.85
    3+ £123.58
    £127.40
    FuseBox RTB630304M FuseBox RTB630304M 63A 4 Pole 30MA Type B RCD

    FuseBox RTB630304M 63A 4 Pole 30mA Type B RCD
    Delivery usually within 2 - 3 working days *
    SKU: RTB630304M
    £137.70
    Live Electrical 10kA RCBO 20A Curve C Type A 30mA 1P+N

    Live Electrical 10kA RCBO 20A Curve C Type A 30mA 1P+N
    15 in stock
    More available within 1 - 2 working days *
    SKU: RA120C-030
    £10.24
    FuseBox F3015MZ 15 Way SPD Consumer Unit Kit – with 12 RCBOs

    FuseBox F3015MZ 15 Way SPD Consumer Unit Kit – with 12 RCBOs
    In Stock
    SKU: F3015MZ/12RCBO
    £185.30
     Hager VAT21 Terminal Bar 21 Way with Two Support Clips

     Hager VAT21 Terminal Bar 21 Way with Two Support Clips
    Delivery usually within 1 - 3 working days *
    SKU: VAT21
    £9.05
    Fire Retardant Consumer Unit / Meter Board 12" x 12" ( 304 x 304mm )

    Fire Retardant Consumer Unit / Meter Board 12″ x 12″ ( 304 x 304mm )
    25 in stock
    More available within 1 - 3 working days *
    SKU: MB1212
    £11.90
    WCED Type A Bi-Directional Curve B 10A 30mA RCBO - WRB110B-030

    WCED Type A Bi-Directional Curve B 10A 30mA RCBO – WRB110B-030
    Delivery usually within 1 - 3 working days *
    SKU: WRB110B-030
    £9.99
    WCED Consumer Unit Kit with SPD and 4 RCBOs

    WCED Consumer Unit Kit with SPD and 4 RCBOs
    Delivery usually within 1 - 3 working days *
    SKU: WME8/SP/4RCBO
    £77.03
    Garo Meter Supply Isolator with Surge ProtectionGaro GSP2100M Meter Supply Isolator with Surge Protection

    Garo GSP2100M Meter Supply Isolator with Surge Protection
    20 in stock
    More available within 1 - 3 working days *
    SKU: GPS2100M
    £19.16
    Live Electrical EMCU4-SP Live Electrical 4 Way Metal CU with 20/40kA SPD and 100A Main Switch 1

    Live Electrical EMCU4-SP Metal Enclosure with Type 2 SPD and 100A Main Switch
    5 in stock
    More available within 1 - 2 working days *
    SKU: EMCU4-SP
    £33.99
    Live Electrical EMCU2-A 2 Way Empty DIN Rail Metal Enclosure With Lid

    Live Electrical EMCU2-A 2 Way Empty DIN Rail Metal Enclosure With Lid
    1 in stock
    More available within 1 - 2 working days *
    SKU: EMCU2-A
    £8.90
    Envirograf EBU0 EnviroBurst Automatic Fire Suppression System - 150mm Long Tube 1

    EnviroBurst Automatic Fire Suppression System – 150mm Long Tube
    4 in stock
    More available within 1 - 3 working days *
    SKU: EBU0
    £23.49
    WCED WMEPME06/C40 PME Fault Detection Unit 6 Mod c/w C40 RCBO /4P63A contactor & PME Relays 1

    PME / PEN Fault Detection Unit 6 Mod c/w C40 RCBO /4P63A contactor & PME Relays
    Delivery usually within 1 - 3 working days *
    SKU: WMEPME06/C40
    Quantity Discount
    Quantity Price
    1 £91.50
    2+ £89.67
    3+ £88.76
    £91.50
    Live Electrical 5 Way SPD Metal Consumer Unit Kit with 4 RCBOs

    Live Electrical 5 Way SPD Metal Consumer Unit Kit with 4 RCBOs
    In Stock
    SKU: LSMC8M-SP/4RCBO
    £75.91
    Live Electrical MMGU32B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 32A B Curve Type A

    Live Electrical MMGU32B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 32A B Curve Type A
    Delivery usually within 1 - 2 working days *
    SKU: MMGU32B-SP
    Quantity Discount
    Quantity Price
    1 - 2 £30.99
    3+ £29.44
    5+ £28.67
    10+ £26.96
    20+ £25.41
    £30.99
    Live Electrical SAMODKIT240 Live Electrical SPD Kit SA240 Type 2

    Live Electrical SA240 SPD Type 2 Kit
    Delivery usually within 1 - 2 working days *
    SKU: SAMODKIT240
    £25.90
    FuseBox RTAMC40 40A Mini Type A RCBO

    FuseBox RTAMC40 40A Mini Type A RCBO
    34 in stock
    This item cannot be back-ordered
    SKU: RTAMC40
    £13.50 £12.49
    WCED WME08/SP WCED 5 Way SPD Metal Consumer Unit

    WCED 5 Way SPD Metal Consumer Unit
    Out of stock
    This item cannot be back-ordered
    SKU: WME08/SP
    £43.24
    Read more

    Selection of Consumer Units, TPN Distribution Boards, Circuit Protection, Rotary Isolators, Meter Tails, Fused Switches and Accessories.

    18th Edition Consumer Units with built in SPD Surge Protection Device, stand alone SPD units, PEN loss, PME fault detection consumer units, Consumer units relocation boxes/kits, Three phase distribution boards with built in SPD and main switch.

    Thousands of products in stock ready for next day delivery. Friendly and reliable service, competitive prices.

    Circuit protection in the UK is governed by the wiring regulations outlined in the British Standard BS 7671. This standard, also known as the IET Wiring Regulations, sets out the requirements for the design, installation, and maintenance of electrical installations in the UK. Circuit protection is a crucial aspect of electrical installations to ensure the safety of people and property.

    Here are some key aspects of circuit protection according to BS 7671 and the devices commonly used in the UK market:

    1. Circuit Breakers: Circuit breakers are essential devices for protecting electrical circuits. BS 7671 specifies requirements for the selection and installation of circuit breakers. They come in various types, including:
      • Miniature Circuit Breakers (MCBs): MCBs are commonly used to protect individual circuits. They trip when there’s an overload or a short circuit.
      • Residual Current Devices (RCDs): RCDs are designed to protect against electric shock. They disconnect the circuit if they detect an imbalance in current, indicating a fault.
      • Combination RCD/MCB Devices: These devices combine the functions of both MCBs and RCDs in a single unit. They are often used for socket outlets.
    2. Fuses: While less common in modern installations, fuses may still be used for circuit protection. They work by melting when there’s an excess current, breaking the circuit.
    3. Overcurrent Protection: BS 7671 requires that circuits are protected against overcurrents. This is typically achieved through the use of circuit breakers, fuses, or other protective devices.
    4. Earthing and Bonding: Proper earthing and bonding are essential for safety. This ensures that in the event of a fault, the fault current is safely directed away from people and property.
    5. Surge Protection: Surge protection devices may be required to protect against voltage surges or lightning strikes, especially for sensitive electronic equipment.
    6. Arc Fault Detection: In certain installations, arc fault detection devices may be used to detect and disconnect circuits in the presence of dangerous arc faults.
    7. Circuit Isolation: BS 7671 also specifies requirements for circuit isolation devices such as switches and isolators.
    8. Cable Sizing: The standard provides guidelines for selecting the correct cable size to ensure that the cables can safely carry the intended load without overheating.
    9. Circuit Labels and Documentation: Proper labeling and documentation of circuits are important for maintenance and safety. BS 7671 outlines requirements for labeling and record-keeping.

    It’s important to note that regulations and standards may be updated over time, so it’s essential to consult the latest version of BS 7671 and any local regulations or codes that may apply to your specific location or type of installation. Additionally, electrical work should be carried out by qualified and competent electricians to ensure compliance with safety standards.

     






    © 2026 Electrical4less
    We accept Visa We accept Mastercard We accept Maestro We accept PayPal We use Amazon Pay We use Apple Pay We use Google Pay
    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.

    Orders Below £150 + VAT:
    To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

    Need items faster? You can pay for an additional delivery service to receive in-stock items sooner. Simply email us with your order details, and we’ll send you a payment link for the extra delivery cost.

    Orders Above £150 + VAT:
    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

    Items with Lead Times (e.g., 1–3 Working Days):
    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.

    Didn't find what you're looking for?

    No problem — message us directly on WhatsApp and we’ll help you out.

    We usually respond within minutes during working hours.

    Cookie Preferences
    Our website uses cookies and by using the site you agree to this. To find out more about how we use cookies please view our Privacy Policy.