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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 NBN106A Hager NBN106A Single Pole Type B MCB 6A 10kA

    Hager NBN106A Single Pole Type B MCB 6A 10kA
    12 in stock
    More available within 1 - 3 working days *
    SKU: NBN106A
    £8.94
    FuseBox F2016DX100 16 Way Dual RCD Consumer Unit + SPD

    FuseBox F2016DX100 16 Way Dual RCD Consumer Unit + SPD
    Out of stock
    This item cannot be back-ordered
    SKU: F2016DX100
    £152.90
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    Live Electrical RT280-100 Live Electrical 2 Pole Time Delay 100mA 80A RCD

    Live Electrical RT280-100 2 Pole Time Delay 100mA 80A RCD
    Delivery usually within 1 - 2 working days *
    SKU: RT280-100
    £26.50
    Live Electrical MLCD61 Live Electrical Single Phase Energy Meter

    Live Electrical MLCD61 Single Phase Energy Meter
    Delivery usually within 1 - 2 working days *
    SKU: MLCD61
    £19.90
    Live Electrical TIME162D Live Electrical Double Module Digital Timer

    Live Electrical Double Module Digital Timer
    Delivery usually within 1 - 2 working days *
    SKU: TIME162D
    £30.95
    FuseBox F3024MDT 24 Way 2x100A Dual Tariff Consumer Unit

    FuseBox F3024MDT 24 Way 2x100A Dual Tariff Consumer Unit
    Delivery usually within 2 - 3 working days *
    SKU: F3024MDT
    £112.86
    WCED 4 Pole 230/400V 25A NO Normally Open AC Modular Contactor

    WCED WAC4P25 – 4 Pole 25A 4NO 230V AC Modular Contactor
    4 in stock
    More available within 1 - 3 working days *
    SKU: WAC4P25
    Quantity Discount
    Quantity Price
    1 - 2 £10.99
    3+ £10.72
    5+ £10.44
    10+ £10.17
    20+ £9.89
    £10.99
    WCED WKB140C WCED 1 Pole 40A C Curve 10 kA MCB 1

    WCED 1 Pole 40A Curve C 10kA MCB
    1 in stock
    More available within 1 - 3 working days *
    SKU: WKB140C
    Quantity Discount
    Quantity Price
    1 - 4 £3.35
    5+ £3.22
    10+ £3.13
    £3.35
    WCED 4 Pole 40A 24V NC Normally Closed AC Modular Contactor

    WCED WAC4P40NC/24 – 4 Pole 40A 4NC 24V AC Modular Contactor
    1 in stock
    More available within 1 - 3 working days *
    SKU: WAC4P40NC/24
    Quantity Discount
    Quantity Price
    1 - 2 £13.49
    3+ £13.15
    5+ £12.82
    10+ £12.48
    20+ £12.14
    £13.49
    FuseBox MT10B101 FuseBox MT10B101 10A Single Pole 10kA B Curve MCB

    FuseBox MT10B101 10A Single Pole 10kA B Curve MCB
    8 in stock
    More available within 2 - 3 working days *
    SKU: MT10B101
    £3.22
    FuseBox MT10B401 FuseBox MT10B401 40A Single Pole 10kA B Curve MCB

    FuseBox MT10B401 40A Single Pole 10kA B Curve MCB
    15 in stock
    More available within 2 - 3 working days *
    SKU: MT10B401
    £3.22
    FuseBox MT10D401 FuseBox MT10D401 40A Single Pole 10kA D Curve MCB

    FuseBox MT10D401 40A Single Pole 10kA D Curve MCB
    2 in stock
    More available within 2 - 3 working days *
    SKU: MT10D401
    £3.22
    FuseBox MT10C252 FuseBox MT10C252 25A Double Pole 10kA C Curve MCB

    FuseBox MT10C252 25A Double Pole 10kA C Curve MCB
    Delivery usually within 2 - 3 working days *
    SKU: MT10C252
    £6.68
    FuseBox MT10D253 FuseBox MT10D253 25A Triple Pole 10kA D Curve MCB

    FuseBox MT10D253 25A Triple Pole 10kA D Curve MCB
    2 in stock
    More available within 2 - 3 working days *
    SKU: MT10D253
    £9.51
    Live Electrical ENC0565 Live Electrical 5 Way Enclosure IP65 H:185 x W:130 x D:110mm

    Live Electrical ENC0565 IP65 5 Way Enclosure
    1 in stock
    More available within 1 - 2 working days *
    SKU: ENC0565
    £15.65
    Live Electrical PEN2 2 Way Plastic Enclosure

    Live Electrical PEN2 2 Way Plastic Enclosure
    3 in stock
    More available within 1 - 2 working days *
    SKU: PEN2
    £5.05
    Live Electrical RD463-100 Live Electrical 4 Pole Type A 63A 100mA RCD

    Live Electrical RDA463-100 4 Pole Type A 63A 100mA RCD
    Delivery usually within 1 - 2 working days *
    SKU: RDA463-100
    £18.99
    Surge Devices SY2-C40XLEDENCM Surge Devices Type 2 20kA/40kA 3 Phase SPD with LED Indication & 3P 32A MCB in IP65 Polycarbonate Enclosure

    Surge Devices SY2-C40XLED/ENCM Type 2+3 Three Phase SPD in Enclosure with MCB
    2 in stock
    More available within 3 - 4 working days *
    SKU: SY2-C40XLEDENCM
    £183.00
    Live Electrical | SPV340 | 3-Pole | Type 2 DC Surge Device | For Circuits up to 1000VLive Electrical | SPV340 | 3-Pole | Type 2 DC Surge Device | For Circuits up to 1000V

    Live Electrical | SPV340 | 3-Pole | Type 2 DC Surge Device | For Circuits up to 1000V
    Delivery usually within 1 - 2 working days *
    SKU: SPV340
    £21.49
    FuseBox EV32RAX FuseBox EV32RAX EV Charger Distribution Board

    FuseBox EV32RAX 63A Type A RCD B32A MCB Type 2 SPD EV Charger Consumer Unit
    2 in stock
    More available within 1 - 3 working days *
    SKU: EV32RAX
    £58.80

    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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