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Circuit Protection

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SPD Surge Protection Devices (110)

WCED WCT24-100LB WCED Load Balancing Relay + CT Core 1

WLB110 Monitoring Relay

3 In stock
More available within 1-3 working days*
SKU: WCT24-100LB
£40.49
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Cobra RI/DC/25 Cobra Cable 25A DC Rotary Isolator

Cobra Cable 25A DC Rotary Isolator

2 In stock
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SKU: RI/DC/25
£23.10 £19.99
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Hager ADC932R Hager 30mA Type A 32A 6kA C Curve 1M 1P+N Bi-Directional RCBO

Hager ADC932R 30mA Type A 32A 6kA C Curve 1M 1P+N Bi-Directional RCBO

Delivery usually within 1-3 working days*
SKU: ADC932R
£19.43
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WCED WFMSRT00-3F WCED WFMSRT00-3F Fused Main Switch with Time Delayed RCD

WCED WFMSRT00-3F Fused Main Switch with Time Delayed RCD

Delivery usually within 1-3 working days*
SKU: WFMSRT00-3F
£45.50

3-£43.23£2.28£45.50
5-£42.09£3.41£45.50
10-£40.95£4.55£45.50
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G-ProKit GPRO-3PH-METERKIT G-ProBox 100A Three-Phase DIN Rail Metering Kit in Metal Enclosure 1G-ProKit GPRO-3PH-METERKIT G-ProBox 100A Three-Phase DIN Rail Metering Kit in Metal Enclosure 2

G-ProBox 100A Three-Phase DIN Rail Metering Kit in Metal Enclosure

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SKU: GPRO-3PH-METERKIT
£263.25

2-£257.99£5.26£263.25
3-£252.72£10.53£263.25
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FuseBox RTAMB10BD Bi-Directional Mini RCBO 10A B Curve 30mA Type A

FuseBox RTAMB10BD Bi-Directional Mini RCBO 10A B Curve 30mA Type A

30 In stock
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SKU: RTAMB10BD
£14.95
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FuseBox A65E06MWH IP65 6 Way Metal Enclosure – White FuseBox A65E06MWH IP65 6 Way Metal Enclosure – White

FuseBox A65E06MWH IP65 6 Way Metal Enclosure – White

8 In stock
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SKU: A65E06MWH
£41.54

3-£40.92£0.62£41.54
5-£40.40£1.14£41.54
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WCED WKC110B 10kA 1 Pole MCB Curve B 10A

WCED WKC110B 10kA 1 Pole MCB Curve B 10A

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SKU: WKC110B
£2.65

5-£2.54£0.11£2.65
10-£2.48£0.17£2.65
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Garo GS8EV40PME EV Consumer Unit with PEN Fault Detection | B40A RCBO Type A + SPD Garo GS8EV40PME EV Charger Consumer Unit

Garo GS8EV40PME EV Consumer Unit with PEN Fault Detection | B40A RCBO Type A + SPD

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SKU: GS8EV40PME
£115.00
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Hager JK1PLATEM Spare Gland Plate 1.2mm

Hager JK1PLATEM Spare Gland Plate 1.2mm

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SKU: JK1PLATEM
£28.61
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Hager VA10MT Hager VA10MT Meter Tail Cable Clamp

Hager VA10MT Meter Tail Cable Clamp

7 In stock
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SKU: VA10MT
£14.24
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Hager NCN306 MCB

Hager NCN332A 3 Pole MCB Type C 32A 10kA

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SKU: NCN332A
£35.99
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Live Electrical MAC4P25 Live Electrical MAC4P25 25A Modular AC Contactor 4 Pole NO 1Live Electrical MAC4P25 Live Electrical MAC4P25 25A Modular AC Contactor 4 Pole NO 2

Live Electrical MAC4P25 25A Modular AC Contactor 4 Pole NO

2 In stock
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SKU: MAC4P25
£12.99
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FuseBox TD1 Fusebox TD1 Din Rail Mounted Timer 1

Fusebox TD1 Din Rail Mounted Timer

3 In stock
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SKU: TD1
£20.27
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Live Electrical RI4100 100A Weatherproof Rotary Isolator Switch 4 Pole 1Live Electrical RI4100 100A Weatherproof Rotary Isolator Switch 4 Pole 2

Live Electrical RI4100 100A 4 Pole IP65 Rotary Isolator Switch

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SKU: RI4100
£39.99
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FuseBox EV40B FuseBox EV40B EV Charger Distribution Board Type B 40A 30mA RCD 1

FuseBox EV40B EV Charger Consumer Unit Type B 40A 30mA RCD

6 In stock
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SKU: EV40B
£137.39
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Live Electrical EN7050/250 Live Electrical Metal Enclosure IP65 H:700 x W:500 x D:250mm 1Live Electrical EN7050/250 Live Electrical Metal Enclosure IP65 H:700 x W:500 x D:250mm 2

Live Electrical EN7050/250 IP65 Metal Enclosure H:700 x W:500 x D:250mm

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SKU: EN7050/250
£115.39
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WCED WHA1265 WCED 12 Way Empty Plastic Enclosure 1WCED WHA1265 WCED 12 Way Empty Plastic Enclosure 2

WCED 12 Way Empty Plastic Enclosure

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SKU: WHA1265
£19.86

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WCED WMEV232C WCED A-Type Electric Vehicle 2 Module Enclosure - 32A RCBO C Curve 1WCED WMEV232C WCED A-Type Electric Vehicle 2 Module Enclosure - 32A RCBO C Curve 2

WCED A-Type Electric Vehicle 2 Module Enclosure – 32A RCBO C Curve

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SKU: WMEV232C
£25.99

2-£24.69£1.30£25.99
3-£24.04£1.95£25.99
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WCED WKB106C WCED 1 Pole 6A C Curve 10 kA MCB 1WCED WKB106C WCED 1 Pole 6A C Curve 10 kA MCB 2

WCED 1 Pole 6A Curve C 10kA MCB

7 In stock
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SKU: WKB106C
£3.35

5-£3.22£0.13£3.35
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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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