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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1908)

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    Consumer Units (478)

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    Circuit Protection Devices (1064)

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    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Hager SRA01005 Hager Bar/Cable-Through Current Transformer BG 113 100/5A 2.5VA Class 1

    Hager SRA01005 Bar/Cable-Through Current Transformer BG 113 100/5A 2.5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRA01005
    £38.04
    Hager SRA01505 Hager Bar/Cable-Through Current Transformer BG 113 150/5A 2.5VA Class 1

    Hager SRA01505 Bar/Cable-Through Current Transformer BG 113 150/5A 2.5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRA01505
    £39.50
    Hager SRA02005 Hager Bar/Cable-Through Current Transformer BG 113 200/5A 2.5VA Class 1

    Hager SRA02005 Bar/Cable-Through Current Transformer BG 113 200/5A 2.5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRA02005
    £41.97
    Hager SRA02505 Hager Bar/Cable-Through Current Transformer BG 113 250/5A 2.5VA Class 1

    Hager SRA02505 Bar/Cable-Through Current Transformer BG 113 250/5A 2.5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRA02505
    £44.06
    Hager SRC04005 Hager Bar/Cable-Through Current Transformer BG 113 400/5A 5VA Class 1

    Hager SRC04005 Bar/Cable-Through Current Transformer BG 113 400/5A 5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRC04005
    £48.56
    Hager SRC06005 Hager Bar/Cable-Through Current Transformer BG 113 600/5A 5VA Class 1

    Hager SRC06005 Bar/Cable-Through Current Transformer BG 113 600/5A 5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRC06005
    £51.00
    Hager SRD08005 Hager Bar/Cable-Through Current Transformer BG 613 800/5A 5VA Class 1

    Hager SRD08005 Bar/Cable-Through Current Transformer BG 613 800/5A 5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRD08005
    £61.18
    Hager SRD10005 Hager Bar/Cable-Through Current Transformer BG 613 1000/5A 5VA Class 1

    Hager SRD10005 Bar/Cable-Through Current Transformer BG 613 1000/5A 5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRD10005
    £73.42
    Hager SRD15005 Hager Bar/Cable-Through Current Transformer BG 613 1500/5A 5VA Class 1

    Hager SRD15005 Bar/Cable-Through Current Transformer BG 613 1500/5A 5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRD15005
    £88.10
    Hager SRE20005 Hager SRE20005 Bar/Cable-Through Current Transformer

    Hager SRE20005 Bar/Cable-Through Current Transformer
    Delivery usually within 1 - 3 working days*
    SKU: SRE20005
    £122.19
    Hager SRI03005 Hager Bar/Cable-Through Current Transformer BG 413 300/5A 5VA Class 1

    Hager SRI03005 Bar/Cable-Through Current Transformer BG 413 300/5A 5VA Class 1
    Delivery usually within 1 - 3 working days*
    SKU: SRI03005
    £46.25
    Hager SRZH01 Hager DIN Rail Mounting Accessory for BG xx3 Current Transformer

    Hager SRZH01 DIN Rail Mounting Accessory for BG xx3 Current Transformer
    Delivery usually within 1 - 3 working days*
    SKU: SRZH01
    £9.50
    Cobra RI/DC/32 Cobra Cable 32A DC Rotary Isolator

    Cobra Cable 32A DC Rotary Isolator
    2 In Stock
    More available within 1 - 3 working days*
    SKU: RI/DC/32
    £25.05 £19.99
    G-ProKit COMPAC-MET-100A-3PHASE-BI G-ProBox 100A Bi-Directional Three-Phase Modbus Compact Check Meter

    G-ProBox 100A Bi-Directional Three-Phase Modbus Compact Check Meter
    Delivery usually within 1 - 3 working days*
    SKU: COMPAC-MET-100A-3PHASE-BI
    £107.93
    Hager ADB425U Hager ADB425U RCBO 10kA B-25A 30mA Type A

    Hager ADB425U RCBO 10kA B-25A 30mA Type A
    Delivery usually within 1 - 3 working days*
    SKU: ADB425U
    £35.76
    Hager ADB440U Hager ADB440U RCBO 10kA B-40A 30mA Type A

    Hager ADB440U RCBO 10kA B-40A 30mA Type A
    4 In Stock
    More available within 1 - 3 working days*
    SKU: ADB440U
    £35.76
    Hager ADB445U Hager ADB445U RCBO 10kA B-45A 30mA Type A

    Hager ADB445U RCBO 10kA B-45A 30mA Type A
    Delivery usually within 1 - 3 working days*
    SKU: ADB445U
    £35.76
    Hager ADB450U Hager ADB450U RCBO 10kA B-50A 30mA Type A

    Hager ADB450U RCBO 10kA B-50A 30mA Type A
    Delivery usually within 1 - 3 working days*
    SKU: ADB450U
    £35.76
    Hager ADC425U Hager ADC425U RCBO 10kA C-25A 30mA Type A

    Hager ADC425U RCBO 10kA C-25A 30mA Type A
    Delivery usually within 1 - 3 working days*
    SKU: ADC425U
    £35.76
    Hager ADC445U Hager ADC445U RCBO 10kA C-45A 30mA Type A

    Hager ADC445U RCBO 10kA C-45A 30mA Type A
    Delivery usually within 1 - 3 working days*
    SKU: ADC445U
    £35.76

    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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