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Circuit Protection

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Live Electrical RA216C-030 Live Electrical Double Pole Type A RCBO - Curve C - 16A 1Live Electrical RA216C-030 Live Electrical Double Pole Type A RCBO - Curve C - 16A 2

Live Electrical Double Pole Type A RCBO – Curve C – 16A

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This item cannot be back-ordered
SKU: RA216C-030
£16.06
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Live Electrical BUSBAR CAP RED Busbar Cap - Pack of 100

Busbar Cap – Pack of 100

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SKU: BUSBAR CAP RED
£4.50
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Live Electrical SA120 Live Electrical 1 Pole 10kA/20kA Type 2 Surge Protective Device

Live Electrical SA120 1 Pole 10kA/20kA Type 2 SPD Surge Protective Device

5 In stock
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SKU: SA120
£7.95
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FuseBox MT10C251 FuseBox MT10C251 25A Single Pole 10kA C Curve MCB

FuseBox MT10C251 25A Single Pole 10kA C Curve MCB

11 In stock
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SKU: MT10C251
£3.22
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Live Electrical LSMC10M-SP Live Electrical 7 Way SPD Metal Consumer Unit 1Live Electrical LSMC10M-SP Live Electrical 7 Way SPD Metal Consumer Unit 2

Live Electrical 7 Way SPD Metal Consumer Unit

1 In stock
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SKU: LSMC10M-SP
£41.90
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Live Electrical CB110D Live Electrical CB110D 10A Curve D 10kA MCB 1Live Electrical CB110D Live Electrical CB110D 10A Curve D 10kA MCB 2

Live Electrical CB110D 10A Curve D 10kA MCB

13 In stock
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SKU: CB110D
£2.95
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Live Electrical CB116D Live Electrical CB116D 16A Curve D 10kA MCB 1Live Electrical CB116D Live Electrical CB116D 16A Curve D 10kA MCB 2

Live Electrical CB116D 16A Curve D 10kA MCB

15 In stock
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SKU: CB116D
£2.95
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Fusebox EV40A EV Charging Board/ consumer unit

Fusebox EV40A EV Charger Supply Unit 40A

6 In stock
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SKU: EV40A
£43.90
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Live Electrical TPN16-125S Live Electrical 125 Amp 16 Way TPN Distribution Board with SPD 1Live Electrical TPN16-125S Live Electrical 125 Amp 16 Way TPN Distribution Board with SPD 2

Live Electrical TPN16-125S 125 Amp 16 Way TPN Distribution Board with SPD

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SKU: TPN16-125S
£259.00
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FuseBox AFMF18 Fusebox AFMF18 18 Module Flush Mounting Frame Kit 1

Fusebox AFMF18 18 Module Flush Mounting Frame Kit

1 In stock
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SKU: AFMF18
£17.55
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FuseBox F2007RA Fusebox F2007RA 7 Way RCD Consumer Unit 80A 1

Fusebox F2007RA 7 Way RCD Consumer Unit 80A

1 In stock
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SKU: F2007RA
£41.14
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WCED WMCU440SP Whitecliffe Metal Unit 100A Main Switch and Type 2 SPD Surge Protection

WCED WMCU440SP Whitecliffe Metal Unit 100A Main Switch and Type 2 SPD Surge Protection

7 In stock
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SKU: WMCU440SP
£37.65

3-£35.77£1.88£37.65
5-£34.83£2.82£37.65
10-£33.89£3.77£37.65
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WCED WME14/SP WCED 11 Way SPD Metal Consumer Unit

WCED 11 Way SPD Metal Consumer Unit

5 In stock
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SKU: WME14/SP
£49.01
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WCED WRB140C-030 WCED Type A High Immunity Curve C 40A 30mA RCBO 1WCED WRB140C-030 WCED Type A High Immunity Curve C 40A 30mA RCBO 2

WCED Type A High Immunity Curve C 40A 30mA RCBO

18 In stock
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SKU: WRB140C-030
£9.99
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WCED ARD263-030 WCED 2 Pole 63A 30mA Type A High Immunity RCD 1WCED ARD263-030 WCED 2 Pole 63A 30mA Type A High Immunity RCD 2

WCED ARD263-030 2 Pole 63A 30mA Type A High Immunity RCD

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SKU: ARD263-030
£16.17

2-£15.36£0.81£16.17
3-£14.96£1.21£16.17
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Live Electrical RA206B-030 Live Electrical Double Pole Type A RCBO - Curve B - 6A 1Live Electrical RA206B-030 Live Electrical Double Pole Type A RCBO - Curve B - 6A 2

Live Electrical Double Pole Type A RCBO – Curve B – 6A

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SKU: RA206B-030
£16.06
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Live Electrical RA216B-030 Live Electrical Double Pole Type A RCBO - Curve B - 16A 1Live Electrical RA216B-030 Live Electrical Double Pole Type A RCBO - Curve B - 16A 2

Live Electrical Double Pole Type A RCBO – Curve B – 16A

Out of stock
This item cannot be back-ordered
SKU: RA216B-030
£16.06
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Live Electrical RA232B-030 Live Electrical Double Pole Type A RCBO - Curve B - 32A 1Live Electrical RA232B-030 Live Electrical Double Pole Type A RCBO - Curve B - 32A 2

Live Electrical Double Pole Type A RCBO – Curve B – 32A

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SKU: RA232B-030
£16.06
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Wiska 10111966 Wiska 10 Way Consumer Unit Relocation Kit 818 CUR/L 1Wiska 10111966 Wiska 10 Way Consumer Unit Relocation Kit 818 CUR/L 2

Wiska 818 CUR/L 10 Way Consumer Unit Relocation Kit

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SKU: 10111966
£58.95
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FuseBox TPN11FBX Fusebox TPN11FBX 11 Way 125A Three Phase Board 1FuseBox TPN11FBX Fusebox TPN11FBX 11 Way 125A Three Phase Board 2

Fusebox TPN11FBX 11 Way 125A Three Phase Board

4 In stock
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SKU: TPN11FBX
£255.94
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Selection of Consumer Units, TPN Distribution Boards, Circuit Protection, Rotary Isolators, Meter Tails, Fused Switches and Accessories.

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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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