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Circuit Protection

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SPD Surge Protection Devices

SPD Surge Protection Devices (110)

WCED ATDR4100-100 Time Delay Type A 4 Pole 100A 100mA RCD

WCED ATDR4100-100 Time Delay Type A 4 Pole 100A 100mA RCD

9 In stock
More available within 1-3 working days*
SKU: ATDR4100-100
£34.97

2-£33.22£1.75£34.97
3-£32.35£2.62£34.97
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Hager VML112SPDRK 12 Way Main Switch Consumer Unit, featuring a 100A main switch and Type 2 SPD, designed with round knockouts for easy cable entry. Unlike the VML112SPD, this version does not include a gland. Hager VML112SPDRK 12 Way SPD Consumer Unit - Open Front

Hager VML112SPDRK 12 Way Main Switch SPD Consumer Unit with Round Knockouts

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SKU: VML112SPDRK
£84.95
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Wiska 10111773 Wiska 10 Way Consumer Unit Relocation Kit CUR 818 1Wiska 10111773 Wiska 10 Way Consumer Unit Relocation Kit CUR 818 2

Wiska CUR 818 10 Way Consumer Unit Relocation Kit

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SKU: 10111773
£58.95
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WCED WER06C-030 WCED Double Pole Type A 30mA RCBO Curve C - 6A

WCED Double Pole Type A 30mA RCBO Curve C – 6A

26 In stock
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SKU: WER06C-030
£16.80
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WCED WPEPME12/LB PME Fault Detection Unit IP65 with Load Management 12 Mod c/w C40 RCBO Relays and SPD 1WCED WPEPME12/LB PME Fault Detection Unit IP65 with Load Management 12 Mod c/w C40 RCBO Relays and SPD 2

PME / PEN Fault Detection Unit IP65 with Load Management 12 Mod c/w C40 RCBO Relays and SPD

Delivery usually within 1-3 working days*
SKU: WPEPME12/LB
£136.40

2-£133.67£2.73£136.40
3-£132.31£4.09£136.40
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FuseBox SPDCUKITT2TPN Fusebox SPDCUKITT2TPN Three Phase Surge Protection Kit

Fusebox SPDCUKITT2TPN Three Phase Surge Protection Kit

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SKU: SPDCUKITT2TPN
£55.48
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FuseBox MT10C631 FuseBox MT10C631 63A Single Pole 10kA C Curve MCB

FuseBox MT10C631 63A Single Pole 10kA C Curve MCB

12 In stock
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SKU: MT10C631
£3.34
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FuseBox MT10D161 FuseBox MT10D161 16A Single Pole 10kA D Curve MCB

FuseBox MT10D161 16A Single Pole 10kA D Curve MCB

27 In stock
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SKU: MT10D161
£3.22
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FuseBox MT10C403 FuseBox MT10C403 40A Triple Pole 10kA C Curve MCB

FuseBox MT10C403 40A Triple Pole 10kA C Curve MCB

6 In stock
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SKU: MT10C403
£9.51
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FuseBox ABEC Fusebox ABEC TPN Busbar End Caps (Pack of 30)

Fusebox ABEC TPN Busbar End Caps (Pack of 30)

28 In stock
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SKU: ABEC
£0.90
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WCED BBP2100 WCED 2 Pin 100A Busbar Pin Type - 13 Ways

WCED 2 Pin 100A Busbar Pin Type – 13 Ways

19 In stock
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SKU: BBP2100
£8.40
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WCED WME22/SP/15RCBO WCED Consumer Unit Kit with SPD and 15 RCBOs 1

WCED Consumer Unit Kit with SPD and 15 RCBOs

Delivery usually within 1-3 working days*
SKU: WME22/SP/15RCBO
£177.91
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WCED WKC116C 10kA 1 Pole MCB Curve C 16A

WCED WKC116C 10kA 1 Pole MCB Curve C 16A

Delivery usually within 1-3 working days*
SKU: WKC116C
£2.65

5-£2.54£0.11£2.65
10-£2.48£0.17£2.65
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Hager VML114 14 Way RCBO Consumer Unit

Hager VML114 14 Way Main Switch Consumer Unit

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SKU: VML114
£52.68
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Hager SBN290 Hager SBN290 100A Double Pole Isolator 1

Hager SBN290 100A Double Pole Isolator

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SKU: SBN290
£36.89
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Live Electrical TPN08-125 Live Electrical TPN08-125 125A 8 Way TPN Distribution Board 1Live Electrical TPN08-125 Live Electrical TPN08-125 125A 8 Way TPN Distribution Board 2

Live Electrical TPN08-125 125A 8 Way TPN Distribution Board

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SKU: TPN08-125
£125.90
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Hager MTN106 MCB 6kA B-6

Hager MTN106 MCB 6kA B-6

7 In stock
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SKU: MTN106
£2.38
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Live Electrical CB340D Live Electrical CB340D 3 Pole 40A D Curve 10kA MCB 1Live Electrical CB340D Live Electrical CB340D 3 Pole 40A D Curve 10kA MCB 2

Live Electrical CB340D 3 Pole 40A D Curve 10kA MCB

21 In stock
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SKU: CB340D
£10.99
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Live Electrical EN6060/300 IP65 Metal Enclosure, 600x600x300mm, steel construction with RAL7035 epoxy powder coat, featuring galvanised mounting plate and polyurethane foamed gasket for water-tight sealing.Live Electrical EN6060/300 Live Electrical Metal Enclosure IP65 H:600 x W:600 x D:300mm 2

Live Electrical EN6060/300 IP65 Metal Enclosure H:600 x W:600 x D:300mm

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SKU: EN6060/300
£125.40
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Live Electrical CEV263B-030 2 Pole 63A 30mA Type B RCCB Live Electrical CEV263B-030 Live Electrical 2 Pole 63A Type B RCCB 2

Live Electrical CEV263B-030 2 Pole 63A 30mA Type B RCCB

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SKU: CEV263B-030
£89.00
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More products

Showing 481–500 of 1797 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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