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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1912)

    Consumer Units

    Consumer Units (461)

    Circuit Protection Devices

    Circuit Protection Devices (1069)

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    EV Circuit Protection (107)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (127)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (175)

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    Switch Gear (267)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    FuseBox RTA102030B FuseBox RTA102030B 20A 30mA 10kA B Curve Type A RCBO

    FuseBox RTA102030B 20A 30mA 10kA B Curve Type A RCBO
    11 in stock
    More available within 2 - 3 working days *
    SKU: RTA102030B
    £15.99
    Live Electrical 15 Way SPD Metal Consumer Unit Kit c/w 11 RCBOs

    Live Electrical 15 Way SPD Metal Consumer Unit Kit c/w 11 RCBOs
    In Stock
    SKU: LSMC18M-SP/11RCBO
    £142.65
    Live Electrical LEVB240 2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO 1Live Electrical LEVB240 2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO 2

    2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO
    Delivery usually within 1 - 2 working days *
    SKU: LEVB240
    £29.50 £22.50
    FuseBox RTAMB20BD Bi-Directional Mini RCBO 20A B Curve 30mA Type A

    FuseBox RTAMB20BD Bi-Directional Mini RCBO 20A B Curve 30mA Type A
    61 in stock
    More available within 1 - 3 working days *
    SKU: RTAMB20BD
    £13.94
    Live Electrical CB110B Live Electrical CB110B 10A Curve B 10kA MCB 1

    Live Electrical CB110B 10A Curve B 10kA MCB
    18 in stock
    More available within 1 - 2 working days *
    SKU: CB110B
    £2.95
    WCED WKB106B WCED 1 Pole 6A B Curve 10 kA MCB 1

    WCED 1 Pole 6A Curve B 10kA MCB
    1 in stock
    More available within 1 - 3 working days *
    SKU: WKB106B
    Quantity Discount
    Quantity Price
    1 - 4 £3.35
    5+ £3.22
    10+ £3.13
    £3.35
    Niglon PMODBLANK Din Rail Mounted Blank

    Niglon PMODBLANK Din Rail Mounted Blank
    81 in stock
    More available within 1 - 3 working days *
    SKU: PMODBLANK
    £1.10
    Live Electrical RNA40B-030 RCBO A Type DP Bi-Directional 40A B Curve 30mA

    Live Electrical RNA40B-030 RCBO A Type DP Bi-Directional 40A B Curve 30mA
    36 in stock
    More available within 1 - 3 working days *
    SKU: RNA40B-030
    £10.43
    WCED WMC140B WCED Miniature Circuit Breaker 6kA Curve B - 40A 1

    WCED Miniature Circuit Breaker 6kA Curve B – 40A
    Delivery usually within 1 - 3 working days *
    SKU: WMC140B
    £1.53
    FuseBox RTAMB25 25A Mini Type A RCBO

    FuseBox RTAMB25 25A Mini Type A RCBO
    21 in stock
    This item cannot be back-ordered
    SKU: RTAMB25
    £13.50 £12.49
    Live Electrical CB106C Live Electrical CB106C 6A Curve C 10kA MCB 1

    Live Electrical CB106C 6A Curve C 10kA MCB
    19 in stock
    More available within 1 - 2 working days *
    SKU: CB106C
    £2.95
    WCED WRB132C-030 WCED Type A High Immunity Curve C 32A 30mA RCBO 1

    WCED Type A High Immunity Curve C 32A 30mA RCBO
    Delivery usually within 1 - 3 working days *
    SKU: WRB132C-030
    £9.99
    WCED ADR432C-030 4 Pole Type A 32A 30mA C Curve High Immunity RCBO

    WCED ADR432C-030 4 Pole Type A 32A 30mA C Curve High Immunity RCBO
    Delivery usually within 1 - 3 working days *
    SKU: ADR432C-030
    £44.60
    Live Electrical AMR140B-100 100mA Bi-Directional Type A Compact RCBO 40A B CurveLive Electrical AMR140B-100 100mA Bi-Directional Type A Compact RCBO 40A B Curve 2

    Live Electrical | AMR140B-100 | 100mA Bi-Directional Type A Compact RCBO 40A B Curve
    26 in stock
    More available within 1 - 3 working days *
    SKU: AMR140B-100
    £9.99
    Live Electrical TPN08-125S Live Electrical 125A 8 Way TPN Distribution Board SPD 1

    Live Electrical TPN08-125S 125A 8 Way TPN Distribution Board SPD
    Delivery usually within 1 - 2 working days *
    SKU: TPN08-125S
    £147.30
    Fire Retardant Consumer Unit / Meter Board 18" x 24" ( 457 x 608mm )

    Fire Retardant Consumer Unit / Meter Board 18″ x 24″ ( 457 x 608mm )
    8 in stock
    More available within 1 - 3 working days *
    SKU: MB1824
    £20.90
    Live Electrical TBL100 MCB Type Terminal Block 100A

    MCB Type Terminal Block 100A
    2 in stock
    More available within 1 - 2 working days *
    SKU: TBL100
    £2.50
    WCED WPEPME08/SP/C40 PME Fault Detection IP65 Unit 8 Mod c/w C40 RCBO /4P63A Contactor SPD & PME Relays

    PME / PEN Fault Detection IP65 Unit 8 Mod c/w C40 RCBO /4P63A Contactor SPD & PME Relays
    Delivery usually within 1 - 3 working days *
    SKU: WPEPME08/SP/C40
    Quantity Discount
    Quantity Price
    1 £97.50
    2+ £95.55
    3+ £94.58
    £97.50
    WCED WFMS100/3FSP WCED Metal Fused Main Switch with 3 Fuses & SPD 1

    WCED Metal Fused Main Switch with 3 Fuses & SPD
    Delivery usually within 1 - 3 working days *
    SKU: WFMS100/3FSP
    £65.40
    WCED ADR440C-030 4 Pole Type A 40A 30mA C Curve High Immunity RCBO

    WCED ADR440C-030 4 Pole Type A 40A 30mA C Curve High Immunity RCBO
    Delivery usually within 1 - 3 working days *
    SKU: ADR440C-030
    £44.60

    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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