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Circuit Protection

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SPD Surge Protection Devices

SPD Surge Protection Devices (109)

FuseBox MT10B103 FuseBox MT10B103 10A Triple Pole 10kA B Curve MCB

FuseBox MT10B103 10A Triple Pole 10kA B Curve MCB

20 In stock
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SKU: MT10B103
£9.51
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FuseBox MT10C103 FuseBox MT10C103 10A Triple Pole 10kA C Curve MCB

FuseBox MT10C103 10A Triple Pole 10kA C Curve MCB

19 In stock
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SKU: MT10C103
£9.51
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Fusebox Consumer Unit MCB D Type

FuseBox MT10D063 6A Triple Pole 10kA D Curve MCB

16 In stock
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SKU: MT10D063
£9.51
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FuseBox MT10D403 FuseBox MT10D403 40A Triple Pole 10kA D Curve MCB

FuseBox MT10D403 40A Triple Pole 10kA D Curve MCB

4 In stock
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SKU: MT10D403
£9.51
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FuseBox MT10D633 FuseBox MT10D633 Triple Pole 63A 10kA D Curve MCB

FuseBox MT10D633 Triple Pole 63A 10kA D Curve MCB

4 In stock
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SKU: MT10D633
£9.88
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FuseBox RTA0800304 Fusebox RTA0800304 80A 4 Pole 30MA Type A RCD

Fusebox RTA0800304 80A 4 Pole 30mA Type A RCD

5 In stock
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SKU: RTA0800304
£26.50
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Fusebox Consumer Unit Blank

FuseBox AMBP Module Blanks 12 Pack

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SKU: AMBP
£0.90
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FuseBox KWH1M45 FuseBox KWH1M45 Single Phase kWh Energy Meter 1FuseBox KWH1M45 FuseBox KWH1M45 Single Phase kWh Energy Meter 2

FuseBox KWH1M45 Single Phase kWh Energy Meter

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SKU: KWH1M45
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Live Electrical ENC0365 Live Electrical 3 Way Enclosure IP65 H:185 x W:95 x D:110mm

Live Electrical ENC0365 IP65 3 Way Enclosure

8 In stock
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SKU: ENC0365
£12.95
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Live Electrical ENC0865 Live Electrical 8 Way Enclosure IP65 H:185 x W:190 x D:110mm

Live Electrical ENC0865 IP65 8 Way Enclosure

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SKU: ENC0865
£22.35
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Live Electrical RD480-100 Live Electrical 4 Pole Type A 80A 100mA RCD

Live Electrical RDA480-100 4 Pole Type A 80A 100mA RCD

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SKU: RDA480-100
£19.99
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Live Electrical TPN-250S Live Electrical Metal Enclosure with 4P 20-40KA SPD for 250A TPN Boards 1Live Electrical TPN-250S Live Electrical Metal Enclosure with 4P 20-40KA SPD for 250A TPN Boards 2

Live Electrical Metal Enclosure with 4P 20-40KA SPD for 250A TPN Boards

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SKU: TPN-250S
£191.14
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Surge Devices 10811/LED Surge Devices 3 Phase SPD Type 1+2+3 100kA with Full Mode Protection & LED Indication

Surge Devices 3 Phase SPD Type 1+2+3 100kA with Full Mode Protection & LED Indication

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SKU: 10811/LED
£590.40
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Surge Devices 10812/LED Surge Devices Type 1+2+3 50kA Single Phase SPD with All/Full Mode Protection & LED Indication

Surge Devices Type 1+2+3 50kA Single Phase SPD with All/Full Mode Protection & LED Indication

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SKU: 10812/LED
£369.00
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Surge Devices 800914 Surge Devices 800914 Type 1+2+3 100kA 3 Phase SPD with Window Indication and Pluggable Modules

Surge Devices 800914 Type 1+2+3 100kA 3 Phase SPD

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SKU: 800914
£523.98
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Surge Devices 800912 Surge Devices Type 1+2+3 50kA Single Phase SPD with Window Indication and Pluggable Modules

Surge Devices Type 1+2+3 50kA Single Phase SPD with Window Indication and Pluggable Modules

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SKU: 800912
£265.68
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Surge Devices 10020/4 Surge Devices Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with Indication

Surge Devices Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with Indication

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SKU: 10020/4
£369.00
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Surge Devices 10020/2 Surge Devices Type 1+2+3 25kA Single Phase Lightning and Surge Arrester with Indication

Surge Devices Type 1+2+3 25kA Single Phase Lightning and Surge Arrester with Indication

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SKU: 10020/2
£184.50
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Surge Devices 381649S Surge Devices Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with Window Indication and Pluggable Modules

Surge Devices 381649S Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester

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SKU: 381649S
£428.04
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Surge Devices 10811/LEDENC Surge Devices 10811/LEDENC 3 Phase SPD Type 1+2+3 100kA with Full Mode Protection & LED Indication

Surge Devices 10811/LEDENC 3 Phase SPD Type 1+2+3 100kA with Full Mode Protection & LED Indication

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SKU: 10811/LEDENC
£619.92
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Showing 1141–1160 of 1762 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.

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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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