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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1883)

    Consumer Units

    Consumer Units (469)

    Circuit Protection Devices

    Circuit Protection Devices (1052)

    EV Circuit Protection

    EV Circuit Protection (105)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (125)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (175)

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    Switch Gear (266)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Showing 2241–2260 of 2331 results

    Hager MM508N Motor Protection Circuit Breaker

    Hager | MM501N | Motor Protection Circuit Breaker | 3P 0.1–0.16A
    Delivery usually within 3 - 4 working days*
    SKU: MM501N
    £137.05
    Hager MM508N Motor Protection Circuit Breaker

    Hager | MM508N | Motor Protection Circuit Breaker | 3P 2.5–4A
    Delivery usually within 3 - 4 working days*
    SKU: MM508N
    £106.19
    Hager MM509N Motor Protection Circuit Breaker

    Hager | MM509N | Motor Protection Circuit Breaker | 3P 4–6.3A
    Delivery usually within 3 - 4 working days*
    SKU: MM509N
    £112.55
    Hager MM510N Motor Protection Circuit Breaker

    Hager | MM510N | Motor Protection Circuit Breaker | 3P 6.3–10A
    Delivery usually within 3 - 4 working days*
    SKU: MM510N
    £113.62
    Hager MZ520N Auxiliary Contact

    Hager | MZ520N | Auxiliary Contact 1NC+1NO for Motor Starter
    Delivery usually within 3 - 4 working days*
    SKU: MZ520N
    £28.08
    Hager MZ528N Under Voltage Release

    Hager | MZ528N | Under Voltage Release | 230V AC for Motor Starter
    Delivery usually within 3 - 4 working days*
    SKU: MZ528N
    £34.82
    Hager MZ529N Under Voltage Release

    Hager | MZ529N | Under Voltage Release 400V AC for Motor Starter
    Delivery usually within 3 - 4 working days*
    SKU: MZ529N
    £31.79
    Hager MZ527N Alarm Contact

    Hager | MZ527N | Alarm Contact 2CO for Motor Starter
    Delivery usually within 3 - 4 working days*
    SKU: MZ527N
    £21.94
    Hager MZ530N Emergency Stop Button

    Hager | MZ530N | IP66 | External Emergency Stop Button
    Delivery usually within 3 - 4 working days*
    SKU: MZ530N
    £34.81
    Axiom SF32N 32A 415V TPN Switch Fuse

    Axiom | SF32N | 32A 415V IP54 | Three Phase Switch Fuse
    Delivery usually within 1 - 3 working days*
    SKU: SF32N
    £75.91
    Axiom SF100N 100A 415V TPN Switch Fuse

    Axiom | SF100N | 100A 415V IP54 | Three Phase Switch Fuse
    Delivery usually within 1 - 3 working days*
    SKU: SF100N
    £151.24
    Axiom SF160N 160A 415V TPN Switch Fuse

    Axiom | SF160N | 160A 415V IP54 | Three Phase Switch Fuse
    Delivery usually within 1 - 3 working days*
    SKU: SF160N
    £219.14
    Axiom SF200N 200A 415V TPN Switch Fuse

    Axiom | SF200N | 200A 415V IP54 | Three Phase Switch Fuse
    Delivery usually within 1 - 3 working days*
    SKU: SF200N
    £316.51
    Axiom SD32N 32A 415V TPN Switch Disconnector

    Axiom | SD32N | 32A 415V IP54 | Three Phase Switch Disconnector
    Delivery usually within 1 - 3 working days*
    SKU: SD32N
    £66.30
    Axiom SD63N 63A 415V TPN Switch Disconnector

    Axiom | SD63N | 63A 415V IP54 | Three Phase Switch Disconnector
    Delivery usually within 1 - 3 working days*
    SKU: SD63N
    £86.69
    Axiom SD100N 100A 415V TPN Switch Disconnector

    Axiom | SD100N | 100A 415V IP54 | Three Phase Switch Disconnector
    Delivery usually within 1 - 3 working days*
    SKU: SD100N
    £152.98
    Axiom SD160N 160A 415V TPN Switch Disconnector

    Axiom | SD160N | 160A 415V IP54 | Three Phase Switch Disconnector
    Delivery usually within 1 - 3 working days*
    SKU: SD160N
    £186.97
    Axiom SD200N 200A 415V TPN Switch Disconnector

    Axiom | SD200N | 200A 415V IP54 | Three Phase Switch Disconnector
    Delivery usually within 1 - 3 working days*
    SKU: SD200N
    £207.04
    Axiom HSC80TP 100A Single Pole + Neutral Fuse Cut Out

    Axiom | HSC80TP | 100A Single Pole + Neutral Fuse Cut Out
    Delivery usually within 1 - 3 working days*
    SKU: HSC80TP
    £28.51
    Axiom PC100SP Protection Chamber For HSC80TP

    Axiom | PC100SP | Protection Chamber For 1 x HSC80TP
    Delivery usually within 1 - 3 working days*
    SKU: PC100SP
    £5.87

    Showing 2241–2260 of 2331 results

    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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