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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1908)

    Consumer Units

    Consumer Units (478)

    Circuit Protection Devices

    Circuit Protection Devices (1064)

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    EV Circuit Protection (106)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (127)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (174)

    Switch Gear

    Switch Gear (266)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    FuseBox EV32A Fusebox EV32A EV Charger Supply Unit 32A

    Fusebox EV32A EV Charger Supply Unit 32A
    2 In Stock
    More available within 2 - 3 working days*
    SKU: EV32A
    £46.20
    WKC220C WCED 2 Pole 20A C Curve 10 kA MCB

    WCED 2 Pole 20A C Curve 10 kA MCB
    Delivery usually within 1 - 3 days*
    SKU: WKC220C
    £7.69
    Live Electrical RI20DC Live Electrical 4 Pole 20A DC Rotary Isolator Switch 1

    Live Electrical RI20DC 4 Pole 20A DC Rotary Isolator Switch
    2 In Stock
    More available within 1 - 2 working days*
    SKU: RI20DC
    £20.99 £16.10
    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
    WCED 4 Pole 63A 24V NC Normally Closed AC Modular Contactor

    WCED WAC4P63NC/24 – 4 Pole 63A 4NC 24V AC Modular Contactor
    1 In Stock
    More available within 1 - 3 working days*
    SKU: WAC4P63NC/24
    Quantity Discount
    Quantity Price
    1 - 2 £15.86
    3+ £15.46
    5+ £15.07
    10+ £14.67
    20+ £14.27
    £15.86
    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 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 WEV463B-030 WCED 4 Pole 63A 30mA Type B RCD

    WCED 4 Pole 63A 30mA Type B RCD
    Delivery usually within 1 - 3 working days*
    SKU: WEV463B-030
    Quantity Discount
    Quantity Price
    1 £133.34
    2+ £129.34
    3+ £126.67
    £133.34
    Live Electrical ENC12-PV4/1 Live Electrical 12 Way (8 Fuses) Solar Consumer Unit DC 1000V 4 Input 1 Output 1

    Live Electrical ENC12-PV4/1 12 Way (8 Fuses) Solar Consumer Unit DC 600V 4 Input 1 Output
    1 In Stock
    More available within 1 - 2 working days*
    SKU: ENC12-PV4/1
    £111.37 £96.06
    Surge Devices 10811/LEDENCM Surge Devices 10811/LEDENCM 3 Phase SPD Type 1+2+3 100kA with Full Mode Protection & LED Indication in IP65 Polycarbonate Enclosure

    Surge Devices 10811/LEDENCM Type 1+2+3 SPD – 3-Phase Lightning Arrester with 63A MCB in IP65 Enclosure for TN-S & TNC-S Systems
    Delivery usually within 3 - 4 working days*
    SKU: 10811/LEDENCM
    £534.00
    Surge Devices SY2-C40X Surge Devices Type 2 20kA/40kA 3 Phase SPD with Window Indication

    Surge Devices SY2-C40X Type 2+3 Three Phase SPD with Remote Contact
    Delivery usually within 3 - 4 working days*
    SKU: SY2-C40X
    £141.00
    Hager VML11214SPD Hager VML11214SPD Dual Row 12+14 Way 100A Main Switch + SPD

    Hager VML11214SPD Dual Row 12+14 Way 100A Main Switch + SPD
    Delivery usually within 1 - 3 working days*
    SKU: VML11214SPD
    £215.73
    WCED Cable Pack Kit - Standard Live

    WCED Cable Pack Kit – Standard Live, Neutral & Earth Cable
    6 In Stock
    This item cannot be back-ordered
    SKU: Cable Kit1
    £2.00
    WCED WARB5100C/PME WARB5100C/PME 3 Phase PME Fault Detection Unit

    WARB5100C/PME 3 Phase Fault Detection Unit
    Delivery usually within 1 - 3 working days*
    SKU: WARB5100C/PME
    £74.32

    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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