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    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1879)

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    Consumer Units (448)

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    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Hager KDN180B Insulated Busbar 1P 80A Fork 16mm² 57M

    Hager KDN180B Insulated Busbar 1P 80A Fork 16mm² – 1 Meter
    3 in stock
    More available within 1 - 3 working days *
    SKU: KDN180B
    £32.02
    Hager KZN021 End Cap for Busbar 1P

    Hager KZN021 End Cap for Busbar 1P
    Delivery usually within 1 - 3 working days *
    SKU: KZN021
    £2.05
    Niglon EDB10D 400A 10-Way Earthing Busbar with Link

    Niglon EDB10D 400A 10-Way Earthing Busbar with Link
    Delivery usually within 1 - 3 working days *
    SKU: EDB10D
    £98.15
    matt:e ARD-2-32-TP-R-SPD EV Connection Centre with O-PEN, 2 x 32A TPN Type A RCBOs & Type 2 SPD

    matt:e ARD-2-32-TP-R-SPD EV Connection Centre with O-PEN, 2 x 32A TPN Type A Curve C RCBOs & Type 2 SPD
    Delivery usually within 1 - 3 working days *
    SKU: ARD-2-32-TP-R-SPD
    £1,144.68
    matt:e SP-EVCP-R Single-Phase EV Consumer Unit with Type A RCBO & PEN Fault Protection

    matt:e SP-EVCP-R Single-Phase EV Consumer Unit with Type A C32 RCBO & PEN Fault Protection
    Delivery usually within 1 - 3 working days *
    SKU: SP-EVCP-R
    £180.31
    matt:e EVU-3-32-R Three-Phase EV Consumer Unit with O-PEN® Technology & 3 x 32A Type A RCBOsmatt:e EVU-3-32-R Three-Phase EV Consumer Unit with O-PEN® Technology & 3 x 32A Type A RCBOs

    matt:e EVU-3-32-R Three-Phase EV Consumer Unit with O-PEN® Technology & 3 x 32A Type A RCBOs
    Out of stock
    This item cannot be back-ordered
    SKU: EVU-3-32-R
    £620.53
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    Niglon M3CU14SP 100A DP Main Switch SPD Consumer Unit, 10 Usable Ways, Ideal for RCBO Setup, BS7671:2018 Compliant, 18th Edition Consumer Unit.

    Niglon M3CU14SP 100A DP Main Switch 10 Way SPD Consumer Unit
    1 in stock
    More available within 1 - 3 working days *
    SKU: M3CU14SP
    £67.34
    Niglon RCBO1-10/30SAX2 10A RCBO – Bi-Directional, Type A, Curve B, 30mA, 6kA, Compact 18mm Width.

    Niglon RCBO1-10/30SAX2 10A Curve B 30mA Bi-Directional A Type RCBO
    18 in stock
    More available within 1 - 3 working days *
    SKU: RCBO1-10/30SAX2
    £12.78
    Gewiss GW70438P 63A 4-Pole IP66/IP67/IP69 Rotary Isolator Switch

    Gewiss GW70438P 63A 4-Pole IP66/IP67/IP69 Rotary Isolator Switch
    2 in stock
    More available within 1 - 3 working days *
    SKU: GW70438P
    £28.79
    Niglon PCU2220M Protego 100A Twin Screw Main Switch 20 Way Metal Consumer Unit

    Niglon PCU2220M Protego 100A Twin Screw Main Switch 20 Way Metal Consumer Unit
    Delivery usually within 1 - 3 working days *
    SKU: PCU2220M
    £54.70
    Niglon PCU0402M Protego 100A Twin Screw Main Switch 2 Way Metal Consumer Unit

    Niglon PCU0402M Protego 100A Twin Screw Main Switch 2 Way Metal Consumer Unit
    Delivery usually within 1 - 3 working days *
    SKU: PCU0402M
    £23.88
    Niglon PMCB10C3-32 32A 3 Pole 10kA Curve C MCB

    Niglon PMCB10C3-32 32A 3 Pole 10kA Curve C MCB
    8 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10C3-32
    £10.51
    Niglon PMCB10D3-16 16A 3 Pole 10kA Curve D MCB

    Niglon PMCB10D3-16 16A 3 Pole 10kA Curve D MCB
    2 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10D3-16
    £10.51
    Niglon PMCB10B1-32 32A Single Pole 10kA Curve B MCB

    Niglon PMCB10B1-32 32A Single Pole 10kA Curve B MCB
    6 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B1-32
    £3.42
    Niglon PMCB10B1-50 50A Single Pole 10kA Curve B MCB

    Niglon PMCB10B1-50 50A Single Pole 10kA Curve B MCB
    1 in stock
    More available within 1 - 3 working days *
    SKU: PMCB10B1-50
    £3.42
    Niglon PRCB01B1-32 1P + Neutral 32A Curve B Bi-Directional 10kA RCBO

    Niglon PRCBO10B1-32 1P + Neutral 32A Curve B Bi-Directional 10kA RCBO
    2 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10B1-32
    £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
    Hager VML112SPDRK consumer unit kit with built-in SPD, 6 RCBOs, 2-module EV RCBO, and meter tails glandHager VML112SPDRK/EV EV Consumer Unit Kit - 12 Usable Ways, 6 RCBOs of your choice and 1 Designed for EV Charging 2 Module RCBO

    Hager VML112SPDRK/EV Consumer Unit Kit with 6 RCBOs and Dedicated EV Charging RCBO
    Delivery usually within 1 - 3 working days *
    SKU: VML112SPDRK/EV
    £185.29
    Garo GCUT4 4-module IP65-rated electrical enclosure with transparent UV-resistant door, impact-resistant housing, and flexible internal DIN mounting.

    Garo GCUT4 Empty 4 Module IP65 Empty Enclosure
    6 in stock
    More available within 1 - 3 working days *
    SKU: GCUT4
    £15.85
    Hager ARL932U AFDD with 30mA RCBO 32A – Curve B Type A with 1m Neutral Fly Lead

    Hager ARL932U AFDD with 30mA RCBO 32A – Curve B Type A with 1m Neutral Fly Lead
    1 in stock
    More available within 1 - 3 working days *
    SKU: ARL932U
    £111.00

    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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