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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1915)

    Consumer Units

    Consumer Units (481)

    Circuit Protection Devices

    Circuit Protection Devices (1069)

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    EV Circuit Protection (105)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (128)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (178)

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    Switch Gear (267)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    WCED Type A Bi-Directional Curve B 32A 30mA RCBO - WRB132B-030

    WCED Type A Bi-Directional Curve B 32A 30mA RCBO – WRB132B-030
    4 In Stock
    More available within 1 - 3 working days*
    SKU: WRB132B-030
    £10.00
    EV Consumer Unit with A Type DP B32 RCBO and SPDEV Consumer Unit with A Type DP B32 RCBO and SPD 2

    EV Consumer Unit with A Type DP B32 RCBO and SPD
    16 In Stock
    More available within 1 - 3 working days*
    SKU: WMRC32BSP
    Quantity Discount
    Quantity Price
    1 - 2 £29.90
    3+ £29.30
    5+ £28.70
    10+ £27.51
    £29.90
    Live Electrical 10kA RCBO 20A Curve B Type A 30mA 1P+N

    Live Electrical 10kA RCBO 20A Curve B Type A 30mA 1P+N
    82 In Stock
    More available within 1 - 2 working days*
    SKU: RA120B-030
    £10.24
    Live Electrical LFIS100 Live Electrical Switchfuse With 80A and 100A Fuse Plus Shroud LFIS100 1

    Live Electrical Switchfuse With 80A and 100A Fuse Plus Shroud LFIS100
    19 In Stock
    More available within 1 - 2 working days*
    SKU: LFIS100
    £12.00
    Hager ADA332G Hager ADA332G RCBO 32 Amp B Type 30mA 6kA

    Hager | ADA332G | 6kA | 30mA | B Curve | Type A RCBO | 32A
    5 In Stock
    This item cannot be back-ordered
    SKU: ADA332G
    £11.90
    PJW Meters MB-SPACER 19mm Meter Board Spacer

    19mm Meter Board Spacer
    258 In Stock
    More available within 1 - 3 working days*
    SKU: MB-SPACER
    £0.75
    WCED Type A Bi-Directional Curve B 6A 30mA RCBO - WRB106B-030

    WCED Type A Bi-Directional Curve B 6A 30mA RCBO – WRB106B-030
    16 In Stock
    More available within 1 - 3 working days*
    SKU: WRB106B-030
    £10.00
    Live Electrical AMR116B-030 30mA Type A 16A 6kA B Curve Bi-Directional RCBO

    Live Electrical | AMR116B-030 | 6kA 30mA | Type A B Curve | Bi-Directional RCBO | 16A
    228 In Stock
    More available within 1 - 2 working days*
    SKU: AMR116B-030
    £8.22
    IP65 EV Consumer Unit with Type A DP B40 RCBO and SPD

    IP65 EV Consumer Unit with Type A DP B40 RCBO and SPD
    7 In Stock
    More available within 1 - 3 working days*
    SKU: WPRC40BSP
    Quantity Discount
    Quantity Price
    1 - 2 £32.44
    3+ £31.79
    5+ £31.14
    10+ £29.84
    £32.44
    WCED WME2L/25 WCED Mini CU 2 Way Empty Enclosure 1

    WCED Mini CU 2 Way Empty Enclosure
    Delivery usually within 1 - 3 working days*
    SKU: WME2L/25
    Quantity Discount
    Quantity Price
    1 - 4 £6.41
    5+ £6.25
    10+ £6.09
    20+ £5.93
    £6.41
    Garo DNO5P 100A brown 5 pole terminal block for live phase wiring, suitable for 2.5mm² to 35mm² cables in industrial and commercial electrical panels.

    Garo DNO5P 100A 5 Way Brown Terminal Block
    50 In Stock
    More available within 1 - 3 working days*
    SKU: DNO5P
    Quantity Discount
    Quantity Price
    1 - 9 £3.50
    10+ £3.40
    20+ £3.33
    50+ £3.26
    £3.50
    FuseBox SF0100 100A SP&N Single Pole Fused Isolator Switch

    FuseBox SF0100 100A SP&N Single Pole Fused Isolator Switch
    29 In Stock
    More available within 2 - 3 working days*
    SKU: SF0100
    £27.50
    Fusebox AMBM Metal Blank (Pack Of 6)

    Fusebox AMBM Metal Blank (Pack Of 6)
    58 In Stock
    More available within 2 - 3 working days*
    SKU: AMBM
    £3.65
    FuseBox RTA064030B 30mA Curve B 40A Type A RCBO

    FuseBox RTA064030B 30mA Curve B 40A Type A RCBO
    322 In Stock
    More available within 2 - 3 working days*
    SKU: RTA064030B
    £9.99
    WCED Type A Bi-Directional Curve B 20A 30mA RCBO - WRB120B-030

    WCED Type A Bi-Directional Curve B 20A 30mA RCBO – WRB120B-030
    Delivery usually within 1 - 3 working days*
    SKU: WRB120B-030
    £10.00
    IP65 EV Consumer Unit with Type A DP C40 RCBO and SPD

    IP65 EV Consumer Unit with Type A DP C40 RCBO and SPD
    Delivery usually within 1 - 3 working days*
    SKU: WPRC40CSP
    Quantity Discount
    Quantity Price
    1 - 2 £32.44
    3+ £31.79
    5+ £31.14
    10+ £29.84
    £32.44
    FuseBox RTA061030B 30mA Curve B 10A Type A RCBO

    FuseBox RTA061030B 30mA Curve B 10A Type A RCBO
    183 In Stock
    More available within 2 - 3 working days*
    SKU: RTA061030B
    £9.99
    Live Electrical MMGU40B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 40A B Curve Type A

    Live Electrical MMGU40B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 40A B Curve Type A
    6 In Stock
    More available within 1 - 2 working days*
    SKU: MMGU40B-SP
    Quantity Discount
    Quantity Price
    1 - 2 £30.99
    3+ £29.44
    5+ £28.67
    10+ £26.96
    20+ £25.41
    £30.99
    Live Electrical 10kA RCBO 16A Curve C Type A 30mA 1P+N

    Live Electrical 10kA RCBO 16A Curve C Type A 30mA 1P+N
    16 In Stock
    More available within 1 - 2 working days*
    SKU: RA116C-030
    £10.24
    MCBBLANK - Plastic Blank for WCED Consumer Units

    MCBBLANK – Plastic Blank for WCED Consumer Units
    179 In Stock
    More available within 1 - 3 working days*
    SKU: MCBBLANK
    £0.42

    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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