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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1883)

    Consumer Units

    Consumer Units (469)

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    Circuit Protection Devices (1052)

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    EV Circuit Protection (105)

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    Three Phase Distribution Boards (93)

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    Switch Fuses - Isolators (175)

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    Switch Gear (266)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Showing 1021–1040 of 2331 results

    FuseBox F3032MDT 32 Way 2x100A Dual Tariff Consumer Unit

    FuseBox F3032MDT 32 Way 2x100A Dual Tariff Consumer Unit
    Delivery usually within 2 - 3 working days*
    SKU: F3032MDT
    £140.97
    WCED 16 Way Main Switch Consumer Unit

    WCED | WME18/MS100 | 100A Main Switch Consumer Unit | 16 Way
    1 In Stock
    More available within 1 - 3 working days*
    SKU: WME18/MS100
    £35.48
    WCED 20 Way Main Switch Consumer UnitDurable 20 Way Metal Main Switch Consumer Unit for Reliable Distribution

    WCED | WME22/MS100 | 100A Main Switch Consumer Unit | 20 Way
    Delivery usually within 1 - 3 working days*
    SKU: WME22/MS100
    £40.20
    WCED 10 Way Main Switch Consumer Unit

    WCED | WME12/MS100 | 100A Main Switch Consumer Unit | 10 Way
    Delivery usually within 1 - 3 working days*
    SKU: WME12/MS100
    £29.20
    WCED WME14 WCED 14 Way Metal Enclosure 1WCED WME14 WCED 14 Way Metal Enclosure 2

    WCED 14 Way Metal Enclosure
    Delivery usually within 1 - 3 working days*
    SKU: WME14
    Quantity Discount
    Quantity Price
    1 - 4 £27.32
    5+ £26.64
    10+ £25.95
    20+ £25.27
    £27.32
    WCED WMC163C WCED Miniature Circuit Breaker 6kA Curve C - 63A 1

    WCED Miniature Circuit Breaker 6kA Curve C – 63A
    Delivery usually within 1 - 3 working days*
    SKU: WMC163C
    £1.37
    WCED WMC106C WCED Miniature Circuit Breaker 6kA Curve C - 6A 1

    WCED Miniature Circuit Breaker 6kA Curve C – 6A
    Delivery usually within 1 - 3 working days*
    SKU: WMC106C
    £1.37
    WCED 2 Pole 20A C Curve 10kA MCB

    WCED | WKC220C | 10kA | Curve C | 2 Pole Bi-Directional MCB | 20A
    Delivery usually within 1 - 3 working days*
    SKU: WKC220C
    £5.82
    Axiom THR135 Axiom Thermal Overload Relay 4 - 6A

    Profix THR135 Thermal Overload Relay 4 – 6A
    2 In Stock
    This item cannot be back-ordered
    SKU: THR135
    £12.50 £9.90
    0.4mm-1.0mm Grommet PE Strip - 10 metres

    0.4mm-1.0mm Grommet PE Strip – 10 metres
    2 In Stock
    More available within 1 - 3 working days*
    SKU: GS1/10M-1
    £5.60
    FuseBox MT10D251 FuseBox MT10D251 25A Single Pole 10kA D Curve MCB

    FuseBox MT10D251 25A Single Pole 10kA D Curve MCB
    9 In Stock
    More available within 2 - 3 working days*
    SKU: MT10D251
    £3.22
    FuseBox MT10B163 FuseBox MT10B163 16A Triple Pole 10kA B Curve MCB

    FuseBox MT10B163 16A Triple Pole 10kA B Curve MCB
    27 In Stock
    More available within 2 - 3 working days*
    SKU: MT10B163
    £9.51
    FuseBox MT10C103 FuseBox MT10C103 10A Triple Pole 10kA C Curve MCB

    FuseBox MT10C103 10A Triple Pole 10kA C Curve MCB
    17 In Stock
    More available within 2 - 3 working days*
    SKU: MT10C103
    £9.51
    FuseBox MT10D503 FuseBox MT10D503 50A Triple Pole 10kA D Curve MCB

    FuseBox MT10D503 50A Triple Pole 10kA D Curve MCB
    7 In Stock
    More available within 2 - 3 working days*
    SKU: MT10D503
    £9.88
    FuseBox MT10D633 FuseBox MT10D633 Triple Pole 63A 10kA D Curve MCB

    FuseBox MT10D633 Triple Pole 63A 10kA D Curve MCB
    10 In Stock
    More available within 2 - 3 working days*
    SKU: MT10D633
    £9.88
    FuseBox RTA1001004 Fusebox RTA1001004 100A 4 Pole 100MA Type A RCD 1

    Fusebox RTA1001004 100A 4 Pole 100mA Type A RCD
    7 In Stock
    More available within 2 - 3 working days*
    SKU: RTA1001004
    £27.29
    Fusebox IT1254 125A 4 Pole Main Switch

    Fusebox IT1254 125A 4 Pole Main Switch
    1 In Stock
    More available within 2 - 3 working days*
    SKU: IT1254
    £19.13
    FuseBox IT1004U Fusebox IT1004U 100A 4 Pole Din Rail Connector

    Fusebox IT1004U 100A 4 Pole Din Rail Connector
    Delivery usually within 2 - 3 working days*
    SKU: IT1004U
    £21.59
    FuseBox IT1252U Fusebox IT1252U 125A 2 Pole Din Rail Connector

    Fusebox IT1252U 125A 2 Pole Din Rail Connector
    10 In Stock
    More available within 2 - 3 working days*
    SKU: IT1252U
    £11.32
    WCED 4 Pole 63A 30mA Type B RCD

    WCED | WEV463B-030 | Bi-Directional | B Type RCD | 4 Pole | 63A | 30mA
    Delivery usually within 1 - 3 working days*
    SKU: WEV463B-030
    Quantity Discount
    Quantity Price
    1 £125.65
    2+ £121.88
    3+ £119.37
    £125.65

    Showing 1021–1040 of 2331 results

    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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