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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1879)

    Consumer Units

    Consumer Units (448)

    Circuit Protection Devices

    Circuit Protection Devices (1058)

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    EV Circuit Protection (107)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (121)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (90)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (173)

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    Switch Gear (260)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Hager NBN325A 3 Pole MCB Type B 25A 10kA

    Hager NBN325A 3 Pole MCB Type B 25A 10kA
    4 in stock
    More available within 1 - 3 working days *
    SKU: NBN325A
    £35.99
    Hager NBN340A 3 Pole Type B MCB 40A 10kA

    Hager NBN340A 3 Pole Type B MCB 40A 10kA
    2 in stock
    More available within 1 - 3 working days *
    SKU: NBN340A
    £39.59
    Hager NBN350A 3 Pole MCB Type B 50A 10kA

    Hager NBN350A 3 Pole MCB Type B 50A 10kA
    Delivery usually within 1 - 3 working days *
    SKU: NBN350A
    £35.99
    Hager NCN316A 3 Pole MCB Type C 16A 10kA

    Hager NCN316A 3 Pole MCB Type C 16A 10kA
    17 in stock
    More available within 1 - 3 working days *
    SKU: NCN316A
    £35.99
    Hager NDN306A 3 Pole MCB Type D 6A 10kA

    Hager NDN306A 3 Pole MCB Type D 6A 10kA
    Delivery usually within 1 - 3 working days *
    SKU: NDN306A
    £40.74
    Hager NDN316A 3 Pole MCB Type D 16A 10kA

    Hager NDN316A 3 Pole MCB Type D 16A 10kA
    Delivery usually within 1 - 3 working days *
    SKU: NDN316A
    £40.74
    Hager NDN340A 3 Pole MCB Type D 40A 10kA

    Hager NDN340A 3 Pole MCB Type D 40A 10kA
    Delivery usually within 1 - 3 working days *
    SKU: NDN340A
    £40.74
    Hager NDN125A Hager NDN125A Single Pole Type D MCB 25A 10kA

    Hager NDN125A Single Pole Type D MCB 25A 10kA
    Delivery usually within 1 - 3 working days *
    SKU: NDN125A
    £8.94
    Hager NDN132A Hager NDN132A Single Pole Type D MCB 32A 10kA

    Hager NDN132A Single Pole Type D MCB 32A 10kA
    4 in stock
    More available within 1 - 3 working days *
    SKU: NDN132A
    £8.94
    Hager NBN163A Hager NBN163A Single Pole Type B MCB 63A 10kA

    Hager NBN163A Single Pole Type B MCB 63A 10kA
    1 in stock
    More available within 1 - 3 working days *
    SKU: NBN163A
    £10.12
    Live Electrical AFDD - 10A

    Live Electrical | AFD10B | AFDD with Type A RCBO | 6kA 30mA | B10
    1 in stock
    More available within 1 - 2 working days *
    SKU: AFD10B
    £66.14
    2.1mm-3.0mm Grommet PE Strip - 10 metres

    2.1mm-3.0mm Grommet PE Strip – 10 metres
    7 in stock
    More available within 1 - 3 working days *
    SKU: GS4/10M
    £6.25
    Live Electrical SPB1NC Live Electrical N/C Emergency Stop Switch SPB1NC

    Live Electrical SPB1NC N/C Emergency Stop Switch
    Delivery usually within 1 - 2 working days *
    SKU: SPB1NC
    £5.95
    WCED 10 Way Main Switch Consumer Unit

    WCED 10 Way Main Switch Consumer Unit
    Delivery usually within 1 - 3 working days *
    SKU: WME12/MS100
    £32.31
    WCED WMC150C WCED Miniature Circuit Breaker 6kA Curve C - 50A 1

    WCED Miniature Circuit Breaker 6kA Curve C – 50A
    8 in stock
    More available within 1 - 3 working days *
    SKU: WMC150C
    £1.53
    WCED WME18100TR WCED Metal Dual 100A Type A RCD Consumer Unit – 12 Usable Way

    WCED Metal Dual 100A Type A RCD Consumer Unit – 12 Usable Way
    Delivery usually within 1 - 3 working days *
    SKU: WME18100TR
    £78.77
    WCED WME22100TR/SP WCED Metal Dual 100A Type A RCD SPD Consumer Unit – 14 Usable Way

    WCED Metal Dual 100A Type A RCD SPD Consumer Unit – 14 Usable Way
    Delivery usually within 1 - 3 working days *
    SKU: WME22100TR/SP
    £99.64
    WCED WKB206B WCED 2 Pole 6A B Curve 10 kA MCB 1

    WCED 2 Pole 6A B Curve 10 kA MCB
    4 in stock
    This item cannot be back-ordered
    SKU: WKB206B
    Quantity Discount
    Quantity Price
    1 - 4 £6.99
    5+ £6.71
    10+ £6.54
    £6.99
    WCED WKB206C WCED 2 Pole 6A C Curve 10 kA MCB 1

    WCED 2 Pole 6A C Curve 10 kA MCB
    8 in stock
    This item cannot be back-ordered
    SKU: WKB206C
    Quantity Discount
    Quantity Price
    1 - 4 £6.99
    5+ £6.71
    10+ £6.54
    £6.99
    WCED WKB116C WCED 1 Pole 16A C Curve 10 kA MCB 1

    WCED 1 Pole 16A Curve C 10kA MCB
    1 in stock
    More available within 1 - 3 working days *
    SKU: WKB116C
    Quantity Discount
    Quantity Price
    1 - 4 £3.35
    5+ £3.22
    10+ £3.13
    £3.35

    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.

     






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