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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1893)

    Consumer Units

    Consumer Units (452)

    Circuit Protection Devices

    Circuit Protection Devices (1068)

    EV Circuit Protection

    EV Circuit Protection (107)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (121)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (91)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (173)

    Switch Gear

    Switch Gear (261)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Hager MZ204 Shunt Trip 24-48V AC / 12-48V DC

    Hager MZ204 Shunt Trip 24-48V AC / 12-48V DC
    Delivery usually within 1 - 3 working days *
    SKU: MZ204
    £44.24
    Hager MZN121 Inter-Pole Barrier Set for MCB (1 Set of 3)

    Hager MZN121 Inter-Pole Barrier Set for MCB (1 Set of 3)
    Delivery usually within 1 - 3 working days *
    SKU: MZN121
    £29.34
    Hager MZN176 Locking Wire for Modular Products

    Hager MZN176 Locking Wire for Modular Products
    Delivery usually within 1 - 3 working days *
    SKU: MZN176
    £6.15
    Hager CZN006 Sealable Terminal Cover Set for RCCB (25-63A, 4M)

    Hager CZN006 Sealable Terminal Cover Set for RCCB (25-63A, 4M)
    Delivery usually within 1 - 3 working days *
    SKU: CZN006
    £4.85
    Hager MZN130 Terminal Cover 1P (Pack of 4)

    Hager MZN130 Terminal Cover 1P
    Delivery usually within 1 - 3 working days *
    SKU: MZN130
    £18.62
    Hager L14700 Spare Cartridge Fuses Box (Pack of 10)

    Hager L14700 Spare Cartridge Fuses Box
    Delivery usually within 1 - 3 working days *
    SKU: L14700
    £7.55
    Hager KDN263B Insulated Busbar 2P 63A Fork 10mm² 57M - 1 Meter

    Hager KDN263B Insulated Busbar 2P 63A Fork 10mm² 57M – 1 Meter
    Delivery usually within 1 - 3 working days *
    SKU: KDN263B
    £39.90
    Hager KDN463B Insulated Busbar 4P 63A Fork 10mm² 57M - 1 Meter

    Hager KDN463B Insulated Busbar 4P 63A Fork 10mm² 57M – 1 Meter
    Delivery usually within 1 - 3 working days *
    SKU: KDN463B
    £76.60
    Niglon CS634P 63A 440V IP65 Insulated Changeover Switch

    Niglon CS634P 63A 440V IP65 Insulated Changeover Switch
    Delivery usually within 1 - 3 working days *
    SKU: CS634P
    £119.42
    Niglon CS804P 80A 440V IP65 Enclosed Manual 4 Pole Changeover Switch

    Niglon CS804P 80A 440V IP65 Enclosed Manual 4 Pole Changeover Switch
    Delivery usually within 1 - 3 working days *
    SKU: CS804P
    £148.64
    Niglon MS1250MC 1250A 690V IP65 Mild Steel Enclosed Manual 4 Pole Changeover Switch

    Niglon MS1250MC 1250A 690V IP65 Mild Steel Enclosed Manual 4 Pole Changeover Switch
    Delivery usually within 1 - 3 working days *
    SKU: MS1250MC
    £2,812.30
    Niglon EDB10D-8 800A 10-Way Earthing Busbar with Link

    Niglon EDB10D-8 800A 10-Way Earthing Busbar with Link
    Delivery usually within 1 - 3 working days *
    SKU: EDB10D-8
    £134.50
    Niglon SP12S-1PN 50kA Type 1+2 Surge Protection Device

    Niglon SP12S-1PN 50kA Type 1+2 Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SP12S-1PN
    £139.26
    Niglon SP12S-3PN/50kA 50kA Type 1+2 SPD

    Niglon | SP12S-3PN/50kA | Type 1+2 Surge Protection Device | 50kA
    Delivery usually within 1 - 3 working days *
    SKU: SP12S-3PN/50kA
    £210.51
    Niglon SP23S-1PN 40kA Type 2 Surge Protection Device

    Niglon SP23S-1PN 40kA Type 2 Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SP23S-1PN
    £41.91
    Niglon SP23S-1PN 40kA Type 2 Surge Protection Device

    Niglon SP23S-1PN/C40KA 40kA Type 2 Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SP23S-1PN/C40KA
    £31.10
    Niglon SP23S-3PN/C40KA 40kA Type 2 Surge Protection Device

    Niglon SP23S-3PN/C40KA 40kA Type 2 Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SP23S-3PN/C40KA
    £79.78
    Niglon SAE2M-23-215 Type 2 (or 3) Surge Protection Device

    Niglon SAE2M-23-215 Type 2 (or 3) Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SAE2M-23-215
    £40.43
    Niglon SAE3-23-215 Type 2 (or 3) Surge Protection Device

    Niglon SAE3-23-215 Type 2 (or 3) Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SAE3-23-215
    £40.43
    Niglon SAE5-23-415 Type 2 Surge Protection Device

    Niglon SAE5-23-415 Type 2 Surge Protection Device
    Delivery usually within 1 - 3 working days *
    SKU: SAE5-23-415
    £97.93

    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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