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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)

    Switch Gear

    Switch Gear (256)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    FuseBox MT06C321 32A MCB Curve C

    FuseBox MT06C321 32A MCB Curve C
    20 in stock
    More available within 2 - 3 working days *
    SKU: MT06C321
    £1.95
    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
    Live Electrical Double Pole 100A Copper Busbar 1m 16mm² 54 Pin

    Live Electrical Double Pole 100A Copper Busbar 1m 16mm² 54 Pin
    13 in stock
    More available within 1 - 2 working days *
    SKU: DPC100
    £11.36
    FuseBox MT06C161 16A MCB Curve C

    FuseBox MT06C161 16A MCB Curve C
    11 in stock
    More available within 2 - 3 working days *
    SKU: MT06C161
    £1.95
    WCED WMCUSP463C 3 Phase SPD with 63A Curve C 4 Pole MCB

    WCED WMCUSP463C 3 Phase SPD with 63A Curve C 4 Pole MCB
    Delivery usually within 1 - 3 working days *
    SKU: WMCUSP463C
    £59.90
    Live Electrical MS2100 100A Double Pole Main Switch

    Live Electrical MS2100 100A Double Pole Main Switch
    Delivery usually within 1 - 2 working days *
    SKU: MS2100
    £4.37
    Live Electrical PEN4100 100A 4 Pole Mains Supply Isolator and Enclosure

    Live Electrical PEN4100 100A 4 Pole Mains Supply Isolator and Enclosure
    Delivery usually within 1 - 2 working days *
    SKU: PEN4100
    £12.63
    Live Electrical MCS125A Live Electrical Metal 125A Changeover Switch Box

    Live Electrical MCS125A Metal 125A Changeover Switch
    Delivery usually within 1 - 2 working days *
    SKU: MCS125A
    £34.50
    WCED 2 Pole 20A 24V NC Normally Closed AC Modular Contactor

    WCED WAC2P20NC/24 – 2 Pole 20A 2NC 24V AC Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: WAC2P20NC/24
    Quantity Discount
    Quantity Price
    1 - 2 £13.50
    3+ £13.16
    5+ £12.83
    10+ £12.49
    20+ £12.15
    £13.50
    WCED WKB463C WCED 4 Pole 63A C Curve 10 kA MCB 1

    WCED 4 Pole 63A C Curve 10 kA MCB
    5 in stock
    More available within 1 - 3 working days *
    SKU: WKB463C
    Quantity Discount
    Quantity Price
    1 - 4 £13.45
    5+ £12.91
    10+ £12.58
    £13.45
    WCED WKC106C 10kA 1 Pole MCB Curve C 6A

    WCED WKC106C 10kA 1 Pole MCB Curve C 6A
    Delivery usually within 1 - 3 working days *
    SKU: WKC106C
    Quantity Discount
    Quantity Price
    1 - 4 £3.28
    5+ £3.15
    10+ £3.07
    £3.28
    Live Electrical AMR140B-100 100mA Bi-Directional Type A Compact RCBO 40A B Curve

    Live Electrical AMR140B-100 100mA Bi-Directional Type A Compact RCBO 40A B Curve
    2 in stock
    More available within 1 - 3 working days *
    SKU: AMR140B-100
    £9.99
    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
    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
    Live Electrical CB340C Live Electrical CB340C 3 Pole 40A C Curve 10kA MCB 1

    Live Electrical CB340C 3 Pole 40A C Curve 10kA MCB
    10 in stock
    More available within 1 - 2 working days *
    SKU: CB340C
    £8.37
    Live Electrical MAC2P20 Live Electrical MAC2P20 20A Modular AC Contactor 2 Pole NO 1

    Live Electrical MAC2P20 – 2 Pole 20A 2NO 230V AC Modular Contactor
    3 in stock
    More available within 1 - 2 working days *
    SKU: MAC2P20
    £6.24
    Live Electrical CB363C Live Electrical CB363C 3 Pole 63Amps C Curve 10kA MCB 1

    Live Electrical CB363C 3 Pole 63Amps C Curve 10kA MCB
    7 in stock
    More available within 1 - 2 working days *
    SKU: CB363C
    £9.07
    Live Electrical CB120B Live Electrical CB120B 20A Curve B 10kA MCB 1

    Live Electrical CB120B 20A Curve B 10kA MCB
    18 in stock
    More available within 1 - 2 working days *
    SKU: CB120B
    £2.95
    Live Electrical TPN06-125S Live Electrical 125 Amp 6 Way TPN Distribution Board with SPD 1

    Live Electrical TPN06-125S 125 Amp 6 Way TPN Distribution Board with SPD
    Delivery usually within 1 - 2 working days *
    SKU: TPN06-125S
    £135.16
    Envirograf EBU1 EnviroBurst Automatic Fire Suppression System - 195mm Long Tube 1

    EnviroBurst Automatic Fire Suppression System – 195mm Long Tube
    3 in stock
    More available within 1 - 3 working days *
    SKU: EBU1
    £23.97

    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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