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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1874)

    Consumer Units

    Consumer Units (448)

    Circuit Protection Devices

    Circuit Protection Devices (1038)

    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 (158)

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    Switch Gear (259)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    WCED WFD120B-030 Bi-Directional Type A 30mA B Curve 20A AFDD

    WCED WFD120B-030 Bi-Directional Type A 30mA B Curve 20A AFDD
    Delivery usually within 1 - 3 working days *
    SKU: WFD120B-030
    Quantity Discount
    Quantity Price
    1 - 2 £59.90
    3+ £57.50
    5+ £55.71
    £59.90
    Live Electrical ENC18-PV4/1 18 Way (8 Fuses) Solar Consumer Unit DC 1000V 4 Input 1 Output

    Live Electrical ENC18-PV4/1 18 Way (8 Fuses) Solar Consumer Unit DC 1000V 4 Input 1 Output
    Delivery usually within 1 - 3 working days *
    SKU: ENC18-PV4/1
    £131.99
    Niglon RCBO1-16/30SAX2 16A RCBO – Compact, Bi-Directional, Type A, Curve B, 30mA, 6kA RCBO.

    Niglon RCBO1-16/30SAX2 16A Curve B 30mA Bi-Directional A Type RCBO
    14 in stock
    More available within 1 - 3 working days *
    SKU: RCBO1-16/30SAX2
    £12.78
    Niglon PCU1412M Protego 100A Twin Screw Main Switch 12 Way Metal Consumer Unit

    Niglon PCU1412M Protego 100A Twin Screw Main Switch 12 Way Metal Consumer Unit
    2 in stock
    More available within 1 - 3 working days *
    SKU: PCU1412M
    £41.96
    Niglon PMCB10C1-32 32A Single Pole 10kA Curve C MCB

    Niglon PMCB10C1-32 32A Single Pole 10kA Curve C MCB
    3 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10C1-32
    £3.42
    Niglon PRCBO10B3-40 40A 3 Phase Type A 10kA RCBO

    Niglon PRCBO10B3-40 40A 3 Phase Type A 10kA RCBO
    Delivery usually within 1 - 3 working days *
    SKU: PRCBO10B3-40
    £72.09
    Live Electrical RNC40B-30N – 40A Double Pole Single Module RCBO

    Live Electrical RNC140B-30N – B40A Double Pole Single Module RCBO
    7 in stock
    More available within 1 - 3 working days *
    SKU: RNC140B-30N
    £10.53
    Fusebox E4PMSH 100A Three Phase 4 Pole Main Switch Electric Meter Isolator

    Fusebox E4PMSH 100A Three Phase 4 Pole Main Switch Electric Meter Isolator
    16 in stock
    More available within 1 - 3 working days *
    SKU: E4PMSH
    £23.58
    Fusebox RFT800302 Type F 80A 30mA RCD

    Fusebox RFT800302 Type F 80A 30mA RCD
    1 in stock
    More available within 1 - 3 working days *
    SKU: RFT800302
    £52.00
    Garo DNO5G 100A grey terminal block with 5 connection points, suitable for 2.5mm² to 35mm² cables in power distribution applications.

    Garo DNO5G 100A 5 Way Grey Terminal Block
    94 in stock
    More available within 1 - 3 working days *
    SKU: DNO5G
    Quantity Discount
    Quantity Price
    1 - 9 £3.50
    10+ £3.40
    20+ £3.33
    50+ £3.26
    £3.50
    Live Electrical EV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + Busbar

    Live Electrical EV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + Busbar
    19 in stock
    More available within 1 - 3 working days *
    SKU: EV432SP-BP
    Quantity Discount
    Quantity Price
    1 - 2 £30.99
    3+ £29.44
    5+ £28.67
    10+ £26.96
    20+ £25.41
    £30.99
    Live Electrical Heat Pump Consumer Unit with Type F RCDLive Electrical Heat Pump Consumer Unit with Type F RCD - LHP840MSF

    Live Electrical Heat Pump SPD Consumer Unit with Type F RCD and C40 DP MCB
    Delivery usually within 1 - 3 working days *
    SKU: LHP840MSF
    £66.69
    Live Electrical RKA106B-030 6A 10kA B Curve Compact Bi-Directional RCBO For TPN Distribution Boards

    Live Electrical RKA106B-030 10kA Type A B Curve Compact 6A Bi-Directional RCBO
    7 in stock
    More available within 1 - 3 working days *
    SKU: RKA106B-030
    £11.59
    Live Electrical RKA120B-030 20A 10kA B Curve Compact Bi-Directional RCBO For TPN Distribution Boards

    Live Electrical RKA120B-030 10kA Type A B Curve Compact 20A Bi-Directional RCBO
    10 in stock
    More available within 1 - 3 working days *
    SKU: RKA120B-030
    £11.59
    WCED 2 Pole 63A 100mA Time Delay Type A RCD

    WCED 2 Pole 63A 100mA Time Delay Type A RCD
    5 in stock
    More available within 1 - 3 working days *
    SKU: WARTD263-100
    £22.80
    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
    Garo 200A Metal Clad Isolator

    Garo GSW4200IP55M Metal Clad IP55 200A 4 Pole Isolator
    1 in stock
    More available within 1 - 3 working days *
    SKU: GSW4200IP55M
    £249.90
    Switchtec SMC-2540-240 25A Contactor

    Switchtec SMC-2540-240 25A Contactor – 4NO 240V AC Coil
    6 in stock
    More available within 1 - 3 working days *
    SKU: SMC-2540-240
    £16.34
    WCED WRT106B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 6A

    WCED WRT106B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 6A
    Delivery usually within 1 - 3 working days *
    SKU: WRT106B-030
    £12.50
    Hager NBN306A 3 Pole MCB Type B 6A 10kA

    Hager NBN306A 3 Pole MCB Type B 6A 10kA
    2 in stock
    More available within 1 - 3 working days *
    SKU: NBN306A
    £35.99

    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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