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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1914)

    Consumer Units

    Consumer Units (477)

    Circuit Protection Devices

    Circuit Protection Devices (1070)

    EV Circuit Protection

    EV Circuit Protection (107)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (127)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (175)

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    Switch Gear (267)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    WCED WEV4100B-300 4 Pole 100A B Type 300mA RCD

    WCED WEV4100B-300 4 Pole 100A B Type 300mA RCD
    Delivery usually within 1 - 3 working days*
    SKU: WEV4100B-300
    Quantity Discount
    Quantity Price
    1 £132.96
    2+ £126.31
    3+ £122.99
    £132.96
    Garo GP2100M 2 Way 100A Enclosure Meter Isolation Switch

    Garo GP2100M 2 Way 100A Enclosure Meter Isolation Switch
    6 In Stock
    More available within 1 - 3 working days*
    SKU: GP2100M
    £8.98
    FuseBox R3PN10B3230BD Curve B 3 Phase 32A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10B3230BD 32A 3P+N Curve B Bi-Directional RCBO
    8 In Stock
    This item cannot be back-ordered
    SKU: R3PN10B3230BD
    £64.72
    Garo SIAC432IP65C 32A 4P IP65 Rotary Isolator Switch

    Garo | SIAC432IP65C | 32A 4P IP65 | Compact Rotary Isolator Switch
    2 In Stock
    More available within 1 - 3 working days*
    SKU: SIAC432IP65C
    £14.50
    Hager VML110 10 Way RCBO Consumer Unit

    Hager VML110 10 Way RCBO Consumer Unit
    2 In Stock
    More available within 1 - 3 working days*
    SKU: VML110
    £43.39
    Hager MTN120 MCB 6kA B-20

    Hager MTN120 MCB 6kA B-20
    1 In Stock
    More available within 1 - 3 working days*
    SKU: MTN120
    £2.38
    Hager NBN110A Hager NBN110A Single Pole Type B MCB 10A 10kA

    Hager NBN110A Single Pole Type B MCB 10A 10kA
    13 In Stock
    More available within 1 - 3 working days*
    SKU: NBN110A
    £8.94
    WCED WME04/MS100 WCED 2 Way Main Switch Consumer Unit 1

    WCED 2 Way Main Switch Consumer Unit
    1 In Stock
    More available within 1 - 3 working days*
    SKU: WME04/MS100
    £20.86
    WCED WMEV232C WCED A-Type Electric Vehicle 2 Module Enclosure - 32A RCBO C Curve 1

    WCED A-Type Electric Vehicle 2 Module Enclosure – 32A RCBO C Curve
    Delivery usually within 1 - 3 working days*
    SKU: WMEV232C
    Quantity Discount
    Quantity Price
    1 £25.99
    2+ £24.69
    3+ £24.04
    5+ £23.39
    £25.99
    WCED WKB106C WCED 1 Pole 6A C Curve 10 kA MCB 1

    WCED 1 Pole 6A Curve C 10kA MCB
    6 In Stock
    More available within 1 - 3 working days*
    SKU: WKB106C
    Quantity Discount
    Quantity Price
    1 - 4 £3.35
    5+ £3.22
    10+ £3.13
    £3.35
    WCED WKB120C WCED 1 Pole 20A C Curve 10 kA MCB 1

    WCED 1 Pole 20A Curve C 10kA MCB
    1 In Stock
    This item cannot be back-ordered
    SKU: WKB120C
    Quantity Discount
    Quantity Price
    1 - 4 £3.35
    5+ £3.22
    10+ £3.13
    £3.35
    Live Electrical SA460 Live Electrical 4 Pole 30kA/60kA Type 2 Surge Protective Device

    Live Electrical SA460 4 Pole 30kA/60kA Type 2 Surge Protective Device
    Delivery usually within 1 - 2 working days*
    SKU: SA460
    £56.95
    Wago 788-354 Wago 788 Relay Module with 1 Changeover Contact for Lamp Loads - 24V DC 16A 2.5 mm² Grey 1

    Wago 788-354 Relay Module with 1 Changeover Contact for Lamp Loads – 24V DC 16A 2.5mm² Grey
    11 In Stock
    More available within 1 - 3 working days*
    SKU: 788-354
    £13.94
    FuseBox MT10C321 FuseBox MT10C321 32A Single Pole 10kA C Curve MCB

    FuseBox MT10C321 32A Single Pole 10kA C Curve MCB
    12 In Stock
    More available within 2 - 3 working days*
    SKU: MT10C321
    £3.22
    FuseBox MT10B063 FuseBox MT10B063 6A Triple Pole 10kA B Curve MCB

    FuseBox MT10B063 6A Triple Pole 10kA B Curve MCB
    12 In Stock
    More available within 2 - 3 working days*
    SKU: MT10B063
    £9.51
    FuseBox RTA105030C Fusebox RTA105030C Single Pole Type A C Curve RCBO

    Fusebox RTA105030C 50A Single Pole Type A C Curve RCBO
    12 In Stock
    More available within 2 - 3 working days*
    SKU: RTA105030C
    £15.99
    Surge Devices SY12350KA4P/ENCM Surge Devices Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with Window Indication & 3P 63A MCB in IP65 Polycarbonate Enclosure

    Surge Devices SY12350KA4P/ENCM Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with MCB in IP65 Enclosure
    Delivery usually within 3 - 4 working days*
    SKU: SY12350KA4P/ENCM
    £348.00
    SPV340/1 1500V DC Surge Protection DeviceLive Electrical | SPV340/1 | 3-Pole | 20kA/40kA | Type 2 DC Surge Device | For Circuits up to 1500V

    Live Electrical | SPV340/1 | 3-Pole | Type 2 DC Surge Device | For Circuits up to 1500V
    Delivery usually within 1 - 2 working days*
    SKU: SPV340/1
    £25.28
    Cobra RI/DC/25 Cobra Cable 25A DC Rotary Isolator

    Cobra Cable 25A DC Rotary Isolator
    Delivery usually within 1 - 3 working days*
    SKU: RI/DC/25
    £23.10 £19.99
    FuseBox A65GRAGY Metal IP65 Garage Consumer Unit - Grey

    FuseBox A65GRAGY Metal IP65 Garage Consumer Unit – Grey
    Delivery usually within 1 - 3 working days*
    SKU: A65GRAGY
    £60.00

    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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