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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)

    EV Circuit Protection

    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)

    WCED WKB163D WCED 1 Pole 63A D Curve 10 kA MCB 1

    WCED 1 Pole 63A D Curve 10kA MCB
    Delivery usually within 1 - 3 working days *
    SKU: WKB163D
    Quantity Discount
    Quantity Price
    1 - 4 £3.35
    5+ £3.22
    10+ £3.13
    £3.35
    Axiom THR133.6 Axiom Thermal Overload Relay 2.8 - 4.2A

    Profix THR133.6 Thermal Overload Relay 2.8 – 4.2A
    1 in stock
    This item cannot be back-ordered
    SKU: THR133.6
    £12.50
    Hager ARR916U Hager ARR916U AFD with 30mA RCBO 16A Curve B Type A

    Hager ARR916U AFD with 30mA RCBO 16A Curve B Type A
    3 in stock
    More available within 1 - 3 working days *
    SKU: ARR916U
    £91.50
    Schneider A9V02763 Schneider Electric A9V02763 Vigi iC60 RCD 4P 30mA

    Schneider Electric A9V02763 Vigi iC60 4P 30mA RCD
    1 in stock
    This item cannot be back-ordered
    SKU: A9V02763
    £161.46
    WCED 4 Pole 25A 24V NC Normally Closed AC Modular Contactor

    WCED WAC4P25NC/24 – 4 Pole 25A 4NC 24V AC Modular Contactor
    3 in stock
    More available within 1 - 3 working days *
    SKU: WAC4P25NC/24
    Quantity Discount
    Quantity Price
    1 - 2 £13.49
    3+ £13.15
    5+ £12.82
    10+ £12.48
    20+ £12.14
    £13.49
    Wago 788-303 Wago 788 Relay Module with 1 Changeover Contact - 12V DC 16A 2.5 mm² Grey 1

    Wago 788-303 Relay Module with 1 Changeover Contact – 12V DC 16A 2.5mm² Grey
    Delivery usually within 1 - 3 working days *
    SKU: 788-303
    £8.75
    FuseBox TPN16FB Fusebox TPN16FB 16 Way 125A Three Phase Board 1

    Fusebox TPN16FB 16 Way 125A Three Phase Board
    Delivery usually within 2 - 3 working days *
    SKU: TPN16FB
    £233.58
    FuseBox MT10D061 FuseBox MT10D061 6A Single Pole 10kA D Curve MCB

    FuseBox MT10D061 6A Single Pole 10kA D Curve MCB
    11 in stock
    More available within 2 - 3 working days *
    SKU: MT10D061
    £3.22
    FuseBox MT10D162 16A Double Pole 10kA D Curve MCB

    FuseBox MT10D162 16A Double Pole 10kA D Curve MCB
    5 in stock
    More available within 2 - 3 working days *
    SKU: MT10D162
    £6.68
    FuseBox MT10D202 20A Double Pole 10kA D Curve MCB

    FuseBox MT10D202 20A Double Pole 10kA D Curve MCB
    5 in stock
    More available within 2 - 3 working days *
    SKU: MT10D202
    £6.68
    FuseBox MT10D322 32A Double Pole 10kA D Curve MCB

    FuseBox MT10D322 32A Double Pole 10kA D Curve MCB
    11 in stock
    More available within 2 - 3 working days *
    SKU: MT10D322
    £6.68
    FuseBox MT10C503 FuseBox MT10C503 50A Triple Pole 10kA C Curve MCB

    FuseBox MT10C503 50A Triple Pole 10kA C Curve MCB
    6 in stock
    More available within 2 - 3 working days *
    SKU: MT10C503
    £9.88
    FuseBox MT10D103 FuseBox MT10D103 10A Triple Pole 10kA D Curve MCB

    FuseBox MT10D103 10A Triple Pole 10kA D Curve MCB
    3 in stock
    More available within 2 - 3 working days *
    SKU: MT10D103
    £9.51
    Live Electrical ENC0865 Live Electrical 8 Way Enclosure IP65 H:185 x W:190 x D:110mm

    Live Electrical ENC0865 IP65 8 Way Enclosure
    Delivery usually within 1 - 2 working days *
    SKU: ENC0865
    £22.35
    Live Electrical RD480-100 Live Electrical 4 Pole Type A 80A 100mA RCD

    Live Electrical RDA480-100 4 Pole Type A 80A 100mA RCD
    Delivery usually within 1 - 2 working days *
    SKU: RDA480-100
    £19.99
    Surge Devices 10812/LED 50kA Type 1+2+3 Single Phase SPD with LED Indication

    Surge Devices 10812/LED 50kA Type 1+2+3 Single Phase SPD with LED Indication
    Delivery usually within 3 - 4 working days *
    SKU: 10812/LED
    £243.00
    Surge Devices 800914 Surge Devices 800914 Type 1+2+3 100kA 3 Phase SPD with Window Indication and Pluggable Modules

    Surge Devices 800914 Type 1+2+3 SPD – 3-Phase Lightning Arrester for TN-S & TNC-S Installations
    Delivery usually within 3 - 4 working days *
    SKU: 800914
    £435.00
    Surge Devices 10020/4ENC Surge Devices Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with Indication in IP65 Polycarbonate Enclosure

    Surge Devices 10020/4ENC 50kA Type 1+2+3 Three Phase SPD in IP65 Enclosure
    Delivery usually within 3 - 4 working days *
    SKU: 10020/4ENC
    £330.00
    Surge Devices 10020/2ENC Surge Devices Type 1+2+3 25kA Single Phase Lightning and Surge Arrester with Indication in IP65 Polycarbonate Enclosure

    Surge Devices 10020/2ENC Type 1+2+3 SPD – 25kA Single Phase Lightning Arrester in IP65 Enclosure
    Delivery usually within 3 - 4 working days *
    SKU: 10020/2ENC
    £174.00
    Surge Devices 10020/2ENCM Surge Protection Devices 10020/2/ENCM

    Surge Devices 10020/2ENCM Type 1+2+3 SPD – Single-Phase 25kA Lightning Arrester in IP65 Enclosure with 63A MCB
    Delivery usually within 3 - 4 working days *
    SKU: 10020/2ENCM
    £180.00

    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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