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Live Electrical CEV440B-030 4 Pole 40A 30mA Type B RCCB Live Electrical CEV440B-030 Live Electrical 4 Pole 40A Type B RCCB 2

Live Electrical CEV440B-030 4 Pole 40A 30mA Type B RCCB

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SKU: CEV440B-030
£109.00
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WCED WME12/MS100 WCED 10 Way Main Switch RCBO Consumer Unit

WCED 4 Way Main Switch Consumer Unit

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SKU: WME06/MS100
£21.12
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WCED WMGU04/616 Metal Garage Consumer Unit - 63A Type A RCD 6A/16A B MCBs

WCED WMGU04/616 Metal Garage Consumer Unit – 63A Type A RCD 6A/16A B MCBs

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SKU: WMGU04/616
£25.09

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5-£23.84£1.25£25.09
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WCED WMMS/620 WCED Metal Garage Unit - 100A Main Switch 6A/20A B MCB

WCED Metal Garage Unit – 100A Main Switch 6A/20A B MCB

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SKU: WMMS/620
£19.88
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WCED WME22/SP WCED 19 Way SPD Metal Consumer Unit

WCED 19 Way SPD Metal Consumer Unit

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SKU: WME22/SP
£59.00
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WCED WMC120C WCED Miniature Circuit Breaker 6kA Curve C - 20A 1WCED WMC120C WCED Miniature Circuit Breaker 6kA Curve C - 20A 2

WCED Miniature Circuit Breaker 6kA Curve C – 20A

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SKU: WMC120C
£1.53
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WCED WKB450C WCED 4 Pole 50A C Curve 10 kA MCB 1WCED WKB450C WCED 4 Pole 50A C Curve 10 kA MCB 2

WCED 4 Pole 50A C Curve 10 kA MCB

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SKU: WKB450C
£13.45

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WCED ATDR280-100 WCED Time Delay Type A 2 Pole 80A 100mA RCD

WCED ATDR280-100 Time Delay Type A 2 Pole 80A 100mA RCD

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SKU: ATDR280-100
£27.23

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FuseBox TPN03FBX Fusebox TPN03FBX 3 Way 125A Three Phase Board 1FuseBox TPN03FBX Fusebox TPN03FBX 3 Way 125A Three Phase Board 2

Fusebox TPN03FBX 3 Way 125A Three Phase Board

1 In stock
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SKU: TPN03FBX
£195.64
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FuseBox RTA104030C FuseBox RTA104030C 40A 10kA 30mA C Curve Type A RCBO

FuseBox RTA104030C 40A 10kA 30mA C Curve Type A RCBO

31 In stock
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SKU: RTA104030C
£17.44
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Live Electrical RD480-030 Live Electrical 4 Pole Type A 80A 30mA RCD

Live Electrical RDA480-030 4 Pole Type A 80A 30mA RCD

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SKU: RDA480-030
£19.99
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FuseBox RCBO

FuseBox RTA064530B 45A 30mA Type A RCBO

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SKU: RTA064530B
£9.99
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G-ProKit GPROBOX-PLUS G-ProBox Plus Consumer Unit Relocation Box 1G-ProKit GPROBOX-PLUS G-ProBox Plus Consumer Unit Relocation Box 2

G-ProBox Plus Consumer Unit Relocation Box

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SKU: GPROBOX-PLUS
£48.30

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Hager ADC416U Hager ADC416U RCBO 10kA C-16A 30mA Type A

Hager ADC416U RCBO 10kA C-16A 30mA Type A

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SKU: ADC416U
£35.76
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Hager VML110 10 Way RCBO Consumer Unit

Hager VML110 10 Way RCBO Consumer Unit

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SKU: VML110
£43.39
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Hager VM04CB Hager VM04CB 25mmx30mm Closed Meter Tail Plate

Hager VM04CB 25mmx30mm Closed Meter Tail Plate

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Live Electrical EN3030/200 IP65 Metal Enclosure, 300x300x200mm, steel construction with RAL7035 epoxy powder coat, includes galvanised mounting plate and polyurethane foamed gasket for watertight sealing.Live Electrical EN3030/200 Live Electrical Metal Enclosure IP65 H:300 x W:300 x D:200mm 2

Live Electrical EN3030/200 IP65 Metal Enclosure H:300 x W:300 x D:200mm

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SKU: EN3030/200
£37.29
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Envirograf SCUB2 Envirograf SCUB2 Intumescent Strip for Metal Consumer Units - 150x60mm 1Envirograf SCUB2 Envirograf SCUB2 Intumescent Strip for Metal Consumer Units - 150x60mm 2

Envirograf SCUB2 Intumescent Strip for Metal Consumer Units – 150x60mm

15 In stock
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SKU: SCUB2
£3.82
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Live Electrical SPB Live Electrical 1 Way Mushroom Head Stop Push Button 1

Live Electrical SPB 1 Way Mushroom Head Stop Push Button

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SKU: SPB
£7.95
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WCED WME04/MS100 WCED 2 Way Main Switch Consumer Unit 1WCED WME04/MS100 WCED 2 Way Main Switch Consumer Unit 2

WCED 2 Way Main Switch Consumer Unit

1 In stock
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SKU: WME04/MS100
£20.99
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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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