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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)

    EV Circuit Protection

    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)

    WCED WAC4P100 WCED 4 Pole 100A 4NO AC Contactor 1

    WCED WAC4P100 – 4 Pole 100A 4NO 230V AC Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: WAC4P100
    Quantity Discount
    Quantity Price
    1 - 2 £36.87
    3+ £35.95
    5+ £35.03
    10+ £34.10
    20+ £33.18
    £36.87
    Live Electrical CS3P32 Live Electrical 3 Pole 32A Changeover Switch 1

    Live Electrical CS3P32 3 Pole 32A Changeover Switch
    Delivery usually within 1 - 2 working days*
    SKU: CS3P32
    £23.90
    WCED WAC2P20CO WCED WAC2P20CO 2 Pole 20A Normally Open and Closed AC Modular Contactor

    WCED WAC2P20CO – 2 Pole 20A 1NO 1NC 230V AC Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: WAC2P20CO
    Quantity Discount
    Quantity Price
    1 - 2 £12.26
    3+ £11.95
    5+ £11.65
    10+ £11.34
    20+ £11.03
    £12.26
    WCED WAC4P40NC WCED WAC4P40NC 4 Pole 40A Normally Closed AC Contactor 1

    WCED WAC4P40NC – 4 Pole 40A 4NC 230V AC Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: WAC4P40NC
    Quantity Discount
    Quantity Price
    1 - 2 £15.86
    3+ £15.46
    5+ £15.07
    10+ £14.67
    20+ £14.27
    £15.86
    Live Electrical CB332D Live Electrical CB332D 3 Pole 32A D Curve 10kA MCB 1

    Live Electrical CB332D 3 Pole 32A D Curve 10kA MCB
    1 In Stock
    More available within 1 - 2 working days*
    SKU: CB332D
    £8.37
    WCED WARB5100C/PMESP WARB5100C/PMESP 3 Phase PME Fault Detection Unit

    3 Phase PME / PEN Fault Detection Unit c/w 5 Pole 100A MCB Type 2 SPD and PME Relay
    Delivery usually within 1 - 3 working days*
    SKU: WARB5100C/PMESP
    £93.84
    FuseBox F3007MZ 7 Way RCBO Consumer Unit With SPDFuseBox F3007MZ 7 Way RCBO Consumer Unit With SPD 2

    FuseBox F3007MZ 7 Way RCBO Consumer Unit With SPD
    9 In Stock
    More available within 2 - 3 working days*
    SKU: F3007MZ
    £54.34
    WCED PST9 Grommet Strip for Metal Consumer Units - 0.9m

    Grommet Strip for Metal Consumer Units – 0.9m
    27 In Stock
    More available within 1 - 3 working days*
    SKU: PST9
    £0.83
    FuseBox F3021MZ 21 Way SPD Consumer Unit Kit – with 15 RCBOsPopulated FuseBox 21 Way Consumer Unit Kit for Fast Installation

    FuseBox F3021MZ 21 Way SPD Consumer Unit Kit – with 15 RCBOs
    In Stock
    SKU: F3021MZ/15RCBO
    £222.78
    WCED 4 Pole 230/400V 40A NO Normally Open AC Modular Contactor

    WCED WAC4P40 – 4 Pole 40A 4NO 230V AC Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: WAC4P40
    Quantity Discount
    Quantity Price
    1 - 2 £15.86
    3+ £15.46
    5+ £15.07
    10+ £14.67
    20+ £14.27
    £15.86
    Garo Meter Supply Isolator with Surge ProtectionGaro GSP2100M Meter Supply Isolator with Surge Protection

    Garo GSP2100M Meter Supply Isolator with Surge Protection
    36 In Stock
    More available within 1 - 3 working days*
    SKU: GPS2100M
    £19.16
    FuseBox RTA101630C FuseBox RTA101630C 16A 30mA 10kA C Curve Type A RCBO

    FuseBox RTA101630C 16A 30mA 10kA C Curve Type A RCBO
    18 In Stock
    More available within 2 - 3 working days*
    SKU: RTA101630C
    £15.99
    Hager ARR932U Hager ARR932U AFD with 30mA RCBO 32A Curve B Type A

    Hager ARR932U AFD with 30mA RCBO 32A Curve B Type A
    10 In Stock
    More available within 1 - 3 working days*
    SKU: ARR932U
    £91.50
    Live Electrical CB163C Live Electrical CB163C 63A Curve C 10kA MCB 1

    Live Electrical CB163C 63A Curve C 10kA MCB
    9 In Stock
    More available within 1 - 2 working days*
    SKU: CB163C
    £2.95
    FuseBox MT06C201 20A MCB Curve C

    FuseBox MT06C201 20A MCB Curve C
    33 In Stock
    More available within 2 - 3 working days*
    SKU: MT06C201
    £1.95
    Axiom STDL35 DIN Rail 35mm x 7.5mm - 1 meter

    DIN Rail 35mm x 7.5mm – 1 meter
    11 In Stock
    More available within 2 - 3 working days*
    SKU: STDL35
    £2.95
    WCED WME8 WCED 8 Way Metal Enclosure 1WCED WME8 WCED 8 Way Metal Enclosure 2

    WCED 8 Way Metal Enclosure
    Delivery usually within 1 - 3 working days*
    SKU: WME8
    Quantity Discount
    Quantity Price
    1 - 4 £27.93
    5+ £27.23
    10+ £26.53
    20+ £25.84
    £27.93
    Live Electrical CB316D Live Electrical CB316D 3 Pole 16A D Curve 10kA MCB 1Live Electrical CB316D Live Electrical CB316D 3 Pole 16A D Curve 10kA MCB 2

    Live Electrical CB316D 3 Pole 16A D Curve 10kA MCB
    Delivery usually within 1 - 2 working days*
    SKU: CB316D
    £8.37
    WCED 2 Pole 230V 25A NO Normally Open AC Modular Contactor

    WCED WAC2P25 – 2 Pole 25A 2NO 230V AC Modular Contactor
    3 In Stock
    More available within 1 - 3 working days*
    SKU: WAC2P25
    Quantity Discount
    Quantity Price
    1 - 2 £6.97
    3+ £6.80
    5+ £6.62
    10+ £6.45
    20+ £6.27
    £6.97
    FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs

    FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs
    In Stock
    SKU: F3011MZ/8RCBO
    £143.79

    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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