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Circuit Protection

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Hager MTN116 MCB 6kA B-16

Hager MTN116 MCB 6kA B-16

7 In stock
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SKU: MTN116
£2.38
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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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Live Electrical RDA463-030 Live Electrical 4 Pole Type A 63A 30mA RCD

Live Electrical RDA463-030 4 Pole Type A 63A 30mA RCD

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SKU: RDA463-030
£22.50
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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

17 In stock
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SKU: WRB140C-030
£9.99
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WCED WKB125C WCED 1 Pole 25A C Curve 10 kA MCB 1WCED WKB125C WCED 1 Pole 25A C Curve 10 kA MCB 2

WCED 1 Pole 25A Curve C 10kA MCB

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SKU: WKB125C
£3.35

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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 MMGU05-SR Live Electrical MMGU05-SR SPD Garage/EV Consumer Unit with 40A RCBO 1Live Electrical MMGU05-SR Live Electrical MMGU05-SR SPD Garage/EV Consumer Unit with 40A RCBO 2

Live Electrical MMGU05-SR SPD Garage/EV Consumer Unit with 40A RCBO

10 In stock
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SKU: MMGU05-SR
£41.98
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Live Electrical AMR132B-100 100mA Bi-Directional Type A Compact RCBO 32A B Curve Live Electrical AMR132B-100 100mA Bi-Directional Type A Compact RCBO 32A B Curve

Live Electrical AMR132B-100 100mA Bi-Directional Type A Compact RCBO 32A B Curve

19 In stock
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SKU: AMR132B-100
£9.99
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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

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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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Live Electrical MAC2P40 Live Electrical MAC2P40 40A Modular AC Contactor 2 Pole NO 1Live Electrical MAC2P40 Live Electrical MAC2P40 40A Modular AC Contactor 2 Pole NO 2

Live Electrical MAC2P40 40A Modular AC Contactor 2 Pole NO

5 In stock
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SKU: MAC2P40
£9.79
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Fusebox EV40A EV Charging Board/ consumer unit

Fusebox EV40A EV Charger Supply Unit 40A

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SKU: EV40A
£43.90
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FuseBox AFMF18 Fusebox AFMF18 18 Module Flush Mounting Frame Kit 1

Fusebox AFMF18 18 Module Flush Mounting Frame Kit

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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

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SKU: F2007RA
£41.14
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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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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

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Showing 421–440 of 1808 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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