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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)

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    EV Circuit Protection (107)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (121)

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    Three Phase Distribution Boards (90)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (158)

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    Switch Gear (256)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    FuseBox RTAMB40BD Bi-Directional Mini RCBO 40A B Curve 30mA Type A

    FuseBox RTAMB40BD Bi-Directional Mini RCBO 40A B Curve 30mA Type A
    6 in stock
    More available within 1 - 3 working days *
    SKU: RTAMB40BD
    £13.94
    WCED Whitecliffe WSPDTE-4 4 Pole 4 Module Type 1+2 SPD Surge Protection Device

    WCED Whitecliffe WSPDTE-4 4 Pole 4 Module Type 1+2 SPD Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: WSPDTE-4
    £106.18
    FuseBox AFDD063230B 32A 30mA AFDD

    FuseBox AFDD063230B 32A 30mA AFDD
    3 in stock
    More available within 2 - 3 working days *
    SKU: AFDD063230B
    £84.65
    Live Electrical PEN2100D 100A 2 Pole Mains Supply Isolator and Enclosure 

    Live Electrical PEN2100D 100A 2 Pole Mains Supply Isolator and Enclosure 
    7 in stock
    More available within 1 - 2 working days *
    SKU: PEN2100D
    £9.02
    WCED WMC163B WCED Miniature Circuit Breaker 6kA Curve B - 63A 1

    WCED Miniature Circuit Breaker 6kA Curve B – 63A
    2 in stock
    More available within 1 - 3 working days *
    SKU: WMC163B
    £1.53
    WARB5100C/PME40RSP 3 Phase PME Fault Detection Unit

    WARB5100C/PME40RSP 3 Phase PME Fault Detection Unit
    Out of stock
    This item cannot be back-ordered
    SKU: WARB5100C/PME40RSP
    Quantity Discount
    Quantity Price
    1 £110.25
    2+ £108.05
    3+ £106.94
    £110.25
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    Hager ADA310G Hager ADA310G RCBO 10A B Type 30mA 6kA

    Hager ADA310G RCBO 10A B Type 30mA 6kA
    16 in stock
    More available within 1 - 3 working days *
    SKU: ADA310G
    £12.99
    FuseBox F2007M 7 Way RCBO Consumer Unit

    FuseBox F2007M 7 Way RCBO Consumer Unit
    1 in stock
    This item cannot be back-ordered
    SKU: F2007M
    £27.80
    FuseBox MT06B201 20A MCB Curve B

    FuseBox MT06B201 20A MCB Curve B
    22 in stock
    More available within 2 - 3 working days *
    SKU: MT06B201
    £1.95
    WCED WME6 WCED 6 Way Metal Enclosure 1

    WCED 6 Way Metal Enclosure
    Delivery usually within 1 - 3 working days *
    SKU: WME6
    Quantity Discount
    Quantity Price
    1 - 4 £22.33
    5+ £21.77
    10+ £21.21
    20+ £20.66
    £22.33
    Live Electrical CB150B Live Electrical CB150B 50A Curve B 10kA MCB 1

    Live Electrical CB150B 50A Curve B 10kA MCB
    Delivery usually within 1 - 2 working days *
    SKU: CB150B
    £2.95
    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 £10.43
    3+ £10.17
    5+ £9.91
    10+ £9.65
    20+ £9.39
    £10.43
    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 £13.50
    3+ £13.16
    5+ £12.83
    10+ £12.49
    20+ £12.15
    £13.50
    Niglon PMODBLANK Din Rail Mounted Blank

    Niglon PMODBLANK Din Rail Mounted Blank
    96 in stock
    More available within 1 - 3 working days *
    SKU: PMODBLANK
    £1.10
    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 £31.35
    3+ £30.57
    5+ £29.78
    10+ £29.00
    20+ £28.22
    £31.35
    WCED Double Pole Type A 30mA RCBO Curve B - 16A

    WCED Double Pole Type A 30mA RCBO Curve B – 16A
    Delivery usually within 1 - 3 working days *
    SKU: WER16B-030
    £16.80
    Live Electrical SPV240 Type 2 DC Surge DeviceLive Electrical SPV240 Type 2 DC Surge Device

    Live Electrical | SPV240 | 2-Pole | Type 2 DC Surge Device | For Circuits up to 1000V
    Delivery usually within 1 - 2 working days *
    SKU: SPV240
    £14.82
    Live Electrical ENC465 IP65 4 Way Plastic Enclosure

    Live Electrical ENC465 IP65 4 Way Plastic Enclosure
    Delivery usually within 1 - 2 working days *
    SKU: ENC465
    £9.15
    WCED Consumer Unit Kit with SPD and 9 RCBOs

    WCED Consumer Unit Kit with SPD and 9 RCBOs
    Delivery usually within 1 - 3 working days *
    SKU: WME14/SP/9RCBO
    £125.92
    FuseBox INC202 20A 230V 2 Pole NO Normally Open AC Modular Contactor

    FuseBox INC202 – 2 Pole 20A 2NO 230V AC Modular Contactor
    8 in stock
    More available within 2 - 3 working days *
    SKU: INC202
    £6.50

    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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