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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1874)

    Consumer Units

    Consumer Units (448)

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    Circuit Protection Devices (1038)

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    Three Phase Distribution Boards (90)

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    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Niglon PTB04S Protego 125 4 Way TP&N Type B Three Phase Distribution Board – 125A Incomer

    Niglon PTB04S Protego 125 4 Way TP&N Type B Three Phase Distribution Board – 125A Incomer
    Delivery usually within 1 - 3 working days *
    SKU: PTB04S
    £159.69
    Niglon PTB12S Protego 125 12 Way TP&N Type B Three Phase Distribution Board – 125A Incomer

    Niglon PTB12S Protego 125 12 Way TP&N Type B Three Phase Distribution Board – 125A Incomer
    Delivery usually within 1 - 3 working days *
    SKU: PTB12S
    £245.95
    Niglon PMCB10B3-16 16A 3 Pole 10kA Curve B MCB

    Niglon PMCB10B3-16 16A 3 Pole 10kA Curve B MCB
    4 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B3-16
    £10.51
    Niglon PMCB10B3-63 63A 3 Pole 10kA Curve B MCB

    Niglon PMCB10B3-63 63A 3 Pole 10kA Curve B MCB
    9 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B3-63
    £10.51
    Niglon PMCB10C3-06 6A 3 Pole 10kA Curve C MCB

    Niglon PMCB10C3-06 6A 3 Pole 10kA Curve C MCB
    2 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10C3-06
    £10.51
    Niglon PMCB10D3-32 32A 3 Pole 10kA Curve D MCB

    Niglon PMCB10D3-32 32A 3 Pole 10kA Curve D MCB
    Delivery usually within 1 - 3 working days *
    SKU: PMCB10D3-32
    £10.51
    Niglon PMCB10B1-16 16A Single Pole 10kA Curve B MCB

    Niglon PMCB10B1-16 16A Single Pole 10kA Curve B MCB
    9 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B1-16
    £3.42
    Niglon PMCB10B1-20 20A Single Pole 10kA Curve B MCB

    Niglon PMCB10B1-20 20A Single Pole 10kA Curve B MCB
    3 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B1-20
    £3.42
    Niglon PMCB10B1-25 25A Single Pole 10kA Curve B MCB

    Niglon PMCB10B1-25 25A Single Pole 10kA Curve B MCB
    4 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B1-25
    £3.42
    Niglon PMCB10C1-10 10A Single Pole 10kA Curve C MCB

    Niglon PMCB10C1-10 10A Single Pole 10kA Curve C MCB
    Delivery usually within 1 - 3 working days *
    SKU: PMCB10C1-10
    £3.42
    Niglon PMCB10C1-25 25A Single Pole 10kA Curve C MCB

    Niglon PMCB10C1-25 25A Single Pole 10kA Curve C MCB
    3 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10C1-25
    £3.42
    Niglon PMCB10D1-10 10A Single Pole 10kA Curve D MCB

    Niglon PMCB10D1-10 10A Single Pole 10kA Curve D MCB
    4 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10D1-10
    £3.42
    Niglon PMCB10D1-20 20A Single Pole 10kA Curve D MCB

    Niglon PMCB10D1-20 20A Single Pole 10kA Curve D MCB
    Delivery usually within 1 - 3 working days *
    SKU: PMCB10D1-20
    £3.42
    Niglon PRCB01B1-20 1P + Neutral 20A Curve B Bi-Directional 10kA RCBO

    Niglon PRCBO10B1-20 1P + Neutral 20A Curve B Bi-Directional 10kA RCBO
    2 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10B1-20
    £19.21
    Niglon PRCB01B1-25 1P + Neutral 25A Curve B Bi-Directional 10kA RCBO

    Niglon PRCBO10B1-25 1P + Neutral 25A Curve B Bi-Directional 10kA RCBO
    5 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10B1-25
    £19.21
    Niglon PRCB01C1-10 1P + Neutral 10A Curve C Bi-Directional 10kA RCBO

    Niglon PRCBO10C1-10 1P + Neutral 10A Curve C Bi-Directional 10kA RCBO
    4 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10C1-10
    £19.21
    Niglon PRCB01D1-20 1P + Neutral 20A Curve D Bi-Directional 10kA RCBO

    Niglon PRCBO10D1-20 1P + Neutral 20A Curve D Bi-Directional 10kA RCBO
    4 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10D1-20
    £19.21
    Niglon PRCB01D1-32 1P + Neutral 32A Curve D Bi-Directional 10kA RCBO

    Niglon PRCBO10D1-32 1P + Neutral 32A Curve D Bi-Directional 10kA RCBO
    Delivery usually within 1 - 3 working days *
    SKU: PRCBO10D1-32
    £19.21
    Niglon PRCBO10C3-16 16A 3 Phase Type A 10kA RCBO

    Niglon PRCBO10C3-16 16A 3 Phase Type A 10kA RCBO
    Delivery usually within 1 - 3 working days *
    SKU: PRCBO10C3-16
    £72.09
    Garo SIDC416IP65 16A 4 Pole DC Rotary Isolator

    Garo SIDC416IP65 16A 4 Pole DC Rotary Isolator
    Delivery usually within 1 - 3 working days *
    SKU: SIDC416IP65
    Quantity Discount
    Quantity Price
    1 - 2 £17.85
    3+ £17.49
    5+ £16.96
    10+ £16.07
    £17.85

    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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