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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1879)

    Consumer Units

    Consumer Units (448)

    Circuit Protection Devices

    Circuit Protection Devices (1058)

    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 (173)

    Switch Gear

    Switch Gear (260)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    FuseBox R3PN10C0630BD Curve C 3 Phase 6A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C0630BD 6A 3P+N Curve C Bi-Directional RCBO
    Delivery usually within 1 - 3 working days *
    SKU: R3PN10C0630BD
    £64.72
    FuseBox R3PN10C1030BD Curve C 3 Phase 10A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C1030BD 10A 3P+N Curve C Bi-Directional RCBO
    5 in stock
    More available within 1 - 3 working days *
    SKU: R3PN10C1030BD
    £64.72
    FuseBox R3PN10C2030BD Curve C 3 Phase 20A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C2030BD 20A 3P+N Curve C Bi-Directional RCBO
    Delivery usually within 1 - 3 working days *
    SKU: R3PN10C2030BD
    £64.72
    FuseBox R3PN10C2530BD Curve C 3 Phase 25A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C2530BD 25A 3P+N Curve C Bi-Directional RCBO
    Delivery usually within 1 - 3 working days *
    SKU: R3PN10C2530BD
    £64.72
    FuseBox R3PN10C4030BD Curve C 3 Phase 40A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C4030BD 40A 3P+N Curve C Bi-Directional RCBO
    5 in stock
    More available within 1 - 3 working days *
    SKU: R3PN10C4030BD
    £64.72
    FuseBox R3PN10C4530BD Curve C 3 Phase 45A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C4530BD 45A 3P+N Curve C Bi-Directional RCBO
    Delivery usually within 1 - 3 working days *
    SKU: R3PN10C4530BD
    £64.72
    FuseBox R3PN10C5030BD Curve C 3 Phase 50A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C5030BD 50A 3P+N Curve C Bi-Directional RCBO
    Delivery usually within 1 - 3 working days *
    SKU: R3PN10C5030BD
    £64.72
    Doepke 40A 30mA 2 Pole Type B-HP Heat Pump RCCBDoepke 40A 30mA 2 Pole Type B-HP Heat Pump RCCB

    Doepke DFS2-040 40A 30mA 2 Pole Type B-HP RCCB for Heat Pumps
    Delivery usually within 1 - 3 working days *
    SKU: DFS2-040-2/0.03-HP
    £149.50
    Doepke 63A 30mA 2 Pole Type B-HP Heat Pump RCCBDoepke DFS2-063 63A 30mA 2 Pole Type B-HP RCCB for Heat Pumps

    Doepke DFS2-063 63A 30mA 2 Pole Type B-HP RCCB for Heat Pumps
    Delivery usually within 1 - 3 working days *
    SKU: DFS2-063-2/0.03-HP
    £208.00
    Switchtec NTFM0063F 63A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTFM0063F NTF Series 63A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTFM0063F
    £257.01
    Switchtec NTFM0080F 80A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTFM0080F NTF Series 80A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTFM0080F
    £269.56
    Switchtec NTFM0125F 125A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTFM0125F NTF Series 125A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTFM0125F
    £290.21
    Switchtec NTF0160F 160A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0160F NTF Series 160A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0160F
    £486.76
    Switchtec NTF0200F 200A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0200F NTF Series 200A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0200F
    £509.80
    Switchtec NTF0250F 250A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0250F NTF Series 250A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0250F
    £570.62
    Switchtec NTF0315F 315A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0315F NTF Series 315A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0315F
    £771.07
    Switchtec NTF0400F 400A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0400F NTF Series 400A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0400F
    £874.21
    Switchtec NTF0630F 630A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0630F NTF Series 630A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0630F
    £1,461.66
    Switchtec NTF0800F 800A 4 Pole IP65 Metal Switch Fuse

    Switchtec NTF0800F NTF Series 800A 4 Pole IP65 Metal Enclosed Switch Fuse With Fuses
    Delivery usually within 1 - 3 working days *
    SKU: NTF0800F
    £1,894.01
    FuseBox KWHM3P100 Three Phase Energy Meter

    FuseBox KWHM3P100 Three Phase kWh Energy Meter
    Delivery usually within 1 - 3 working days *
    SKU: KWHM3P100
    £63.70

    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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