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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)

    WCED WAC2P20/24 2 Pole 20A 24V Normally Open AC Contactor

    WCED WAC2P20/24 – 2 Pole 20A 2NO 24V AC Modular Contactor
    Delivery usually within 1 - 3 working days *
    SKU: WAC2P20/24
    Quantity Discount
    Quantity Price
    3+ £13.16
    5+ £12.83
    10+ £12.49
    20+ £12.15
    £13.50
    FuseBox MT06B321 32A MCB Curve B

    FuseBox MT06B321 32A MCB Curve B
    30 in stock
    More available within 2 - 3 working days *
    SKU: MT06B321
    £1.95
    Live Electrical CB132C Live Electrical CB132C 32A Curve C 10kA MCB 1

    Live Electrical CB132C 32A Curve C 10kA MCB
    27 in stock
    More available within 1 - 2 working days *
    SKU: CB132C
    £2.95
    WCED Whitecliffe WME3P40SP 20kA/40kA 3P+N Type 2 SPD Surge Protection with Metal Enclosure

    WCED Whitecliffe WME3P40SP 20kA/40kA 3P+N Type 2 SPD Surge Protection with Metal Enclosure
    Delivery usually within 1 - 3 working days *
    SKU: WME3P40SP
    £34.49
    Live Electrical Single Pole 100A Copper Busbar 1m 16mm² 54 Pin

    Live Electrical Single Pole 100A Copper Busbar 1m 16mm² 54 Pin
    Delivery usually within 1 - 2 working days *
    SKU: SPC100
    £9.60
    Live Electrical FU100A22 Live Electrical 100A 22x58 Fuse 1Live Electrical FU100A22 Live Electrical 100A 22x58 Fuse 2

    Live Electrical 100A 22×58 Fuse
    31 in stock
    More available within 1 - 2 working days *
    SKU: FU100A22
    £1.99
    WCED Whitecliffe WSPD440 20kA/40kA 3P+N Type 2 SPD Surge Protection Device

    WCED Whitecliffe WSPD440 20kA/40kA 3P+N Type 2 SPD Surge Protection Device
    10 in stock
    More available within 1 - 3 working days *
    SKU: WSPD440
    £25.50
    WCED WMC116B WCED Miniature Circuit Breaker 6kA Curve B - 16A 1

    WCED Miniature Circuit Breaker 6kA Curve B – 16A
    6 in stock
    More available within 1 - 3 working days *
    SKU: WMC116B
    £1.53
    WCED Whitecliffe WME440SP Metal Meter Supply Isolator with Type 2 Surge Protection

    WCED Whitecliffe WME440SP Metal Meter Supply Isolator with Type 2 Surge Protection
    Delivery usually within 1 - 3 working days *
    SKU: WME440SP
    £35.45
    FuseBox RTAMC20 20A Mini Type A RCBO

    FuseBox RTAMC20 20A Mini Type A RCBO
    61 in stock
    This item cannot be back-ordered
    SKU: RTAMC20
    £13.50 £12.49
    WCED Double Pole Type A 30mA RCBO Curve C - 40A

    WCED Double Pole Type A 30mA RCBO Curve C – 40A
    27 in stock
    More available within 1 - 3 working days *
    SKU: WER40C-030
    £16.80
    FuseBox RTAMB16BD Bi-Directional Mini RCBO 16A B Curve 30mA Type A

    FuseBox RTAMB16BD Bi-Directional Mini RCBO 16A B Curve 30mA Type A
    14 in stock
    More available within 1 - 3 working days *
    SKU: RTAMB16BD
    £13.94
    Live Electrical MAC2P25 Live Electrical MAC2P25 25A Modular AC Contactor 2 Pole NO 1Live Electrical MAC2P25 Live Electrical MAC2P25 25A Modular AC Contactor 2 Pole NO 2

    Live Electrical MAC2P25 – 2 Pole 25A 2NO 230V AC Modular Contactor
    2 in stock
    More available within 1 - 2 working days *
    SKU: MAC2P25
    £6.24
    Fusebox RTAMB40 40A Mini Type A RCBO

    Fusebox RTAMB40 40A Mini Type A RCBO
    19 in stock
    This item cannot be back-ordered
    SKU: RTAMB40
    £13.50 £12.49
    FuseBox RTA103230B FuseBox RTA103230B 32A 30mA 10kA B Curve Type A RCBO

    FuseBox RTA103230B 32A 30mA 10kA B Curve Type A RCBO
    35 in stock
    More available within 2 - 3 working days *
    SKU: RTA103230B
    £15.99
    WCED WME08HP40C Heat Pump Consumer Unit with 40A Type B RCD C40 MCB Type 2 SPD

    WCED | WME08/HP40C | Heat Pump Consumer Unit | 40A Type B RCD | 3 x C16 MCB | SPD
    Delivery usually within 1 - 3 working days *
    SKU: WME08/HP40C
    £125.00
    Live Electrical EMCU4-A 4 Way Empty DIN Rail Metal Enclosure With Lid

    Live Electrical EMCU4-A 4 Way Empty DIN Rail Metal Enclosure With Lid
    1 in stock
    More available within 1 - 2 working days *
    SKU: EMCU4-A
    £9.90
    WCED Type A Bi-Directional Curve B 40A 30mA RCBO - WRB140B-030

    WCED Type A Bi-Directional Curve B 40A 30mA RCBO – WRB140B-030
    11 in stock
    More available within 1 - 3 working days *
    SKU: WRB140B-030
    £9.99
    WCED Double Pole Type A 30mA RCBO Curve B - 32A

    WCED Double Pole Type A 30mA RCBO Curve B – 32A
    Delivery usually within 1 - 3 working days *
    SKU: WER32B-030
    £16.80
    Live Electrical EV440SP-P IP65 EV Consumer Unit C40 RCBO + Type 2 SPD + Busbar

    Live Electrical EV440SP-P IP65 EV Consumer Unit C40 RCBO + Type 2 SPD + Busbar
    4 in stock
    More available within 1 - 3 working days *
    SKU: EV440SP-P
    £30.99

    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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