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Circuit Protection

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SPD Surge Protection Devices

SPD Surge Protection Devices (107)

Live Electrical TPN18-125S Live Electrical 125 Amp 18 Way TPN Distribution Board with SPD 1Live Electrical TPN18-125S Live Electrical 125 Amp 18 Way TPN Distribution Board with SPD 2

Live Electrical TPN18-125S 125 Amp 18 Way TPN Distribution Board with SPD

Delivery usually within 1-3 working days*
SKU: TPN18-125S
£279.00
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FuseBox F210PMXA FuseBox F210PMXA Dual RCD Consumer Unit with SPD 1

FuseBox F210PMXA Dual RCD Consumer Unit with SPD

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SKU: F210PMXA
£120.89
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Live Electrical MLCD61 Live Electrical Single Phase Energy Meter

Live Electrical MLCD61 Single Phase Energy Meter

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SKU: MLCD61
£19.90
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FuseBox F2020MDT Fusebox F2020MDT 20 Way Dual Tariff Consumer Unit 1

FuseBox F3024MDT 24 Way 2x100A Dual Tariff Consumer Unit

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SKU: F3024MDT
£117.77
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WCED WKB263B WCED 2 Pole 63A B Curve 10 kA MCB 1WCED WKB263B WCED 2 Pole 63A B Curve 10 kA MCB 2

WCED 2 Pole 63A B Curve 10 kA MCB

Delivery usually within 1-3 working days*
SKU: WKB263B
£6.99

5-£6.71£0.28£6.99
10-£6.54£0.45£6.99
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WCED WKB140B WCED 1 Pole 40A B Curve 10 kA MCB 1WCED WKB140B WCED 1 Pole 40A B Curve 10 kA MCB 2

WCED 1 Pole 40A Curve B 10kA MCB

1 In stock
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SKU: WKB140B
£3.35

5-£3.22£0.13£3.35
10-£3.13£0.22£3.35
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Live Electrical CH1100C-1 Live Electrical CH1100C 100A Curve C 6kA MCB 1Live Electrical CH1100C-1 Live Electrical CH1100C 100A Curve C 6kA MCB 2

Live Electrical CH1100C 100A Curve C 6kA MCB

6 In stock
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SKU: CH1100C-1
£4.99
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FuseBox MCB

FuseBox MT06C501 50A C Curve MCB

16 In stock
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SKU: MT06C501
£1.95
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FuseBox MT06C631 FuseBox MT06C631 63A C Curve MCB 1

FuseBox MT06C631 63A C Curve MCB

6 In stock
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SKU: MT06C631
£2.95
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FuseBox MT10C321 FuseBox MT10C321 32A Single Pole 10kA C Curve MCB

FuseBox MT10C321 32A Single Pole 10kA C Curve MCB

4 In stock
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SKU: MT10C321
£3.22
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FuseBox MT10C401 FuseBox MT10C401 40A Single Pole 10kA C Curve MCB

FuseBox MT10C401 40A Single Pole 10kA C Curve MCB

11 In stock
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SKU: MT10C401
£3.22
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FuseBox MT10D401 FuseBox MT10D401 40A Single Pole 10kA D Curve MCB

FuseBox MT10D401 40A Single Pole 10kA D Curve MCB

3 In stock
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SKU: MT10D401
£3.22
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FuseBox MT10C062 FuseBox MT10C062 6A Double Pole 10kA C Curve MCB

FuseBox MT10C062 6A Double Pole 10kA C Curve MCB

12 In stock
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SKU: MT10C062
£6.68
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FuseBox MT10B063 FuseBox MT10B063 6A Triple Pole 10kA B Curve MCB

FuseBox MT10B063 6A Triple Pole 10kA B Curve MCB

14 In stock
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SKU: MT10B063
£9.51
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FuseBox MT10B403 FuseBox MT10B403 40A Triple Pole 10kA B Curve MCB

FuseBox MT10B403 40A Triple Pole 10kA B Curve MCB

14 In stock
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SKU: MT10B403
£9.51
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FuseBox MT10C633 FuseBox MT10C633 63A Triple Pole 10kA C Curve MCB

FuseBox MT10C633 63A Triple Pole 10kA C Curve MCB

10 In stock
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SKU: MT10C633
£9.88
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Live Electrical RD4100-030 Live Electrical 4 Pole Type A 100A 30mA RCD

Live Electrical RDA4100-030 4 Pole Type A 100A 30mA RCD

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SKU: RDA4100-030
£20.99
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PME / PEN Fault Detection Unit with Load Management 12 Mod c/w C40 RCBO Relays and SPD

PME / PEN Fault Detection Unit with Load Management 12 Mod c/w C40 RCBO Relays and SPD

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SKU: WMEPME12/LB
£134.40

2-£131.71£2.69£134.40
3-£130.37£4.03£134.40
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WCED WMIP32BSP IP65 Metal A Type 32A B Curve RCBO EV Protection Unit Plus Surge Protection 1

IP65 Metal A Type 32A B Curve RCBO EV Protection Unit Plus Surge Protection

Delivery usually within 1-3 working days*
SKU: WMIP32BSP
£49.99

2-£48.89£1.10£49.99
3-£47.49£2.50£49.99
5-£46.24£3.75£49.99
10-£44.99£5.00£49.99
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Hager ADB420U Hager ADB420U RCBO 10kA B-20A 30mA Type A

Hager ADB420U RCBO 10kA B-20A 30mA Type A

15 In stock
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SKU: ADB420U
£35.76
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Showing 581–600 of 1806 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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