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Circuit Protection

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Live Electrical LSMC16M-SP Live Electrical 13 Way SPD Metal Consumer Unit 1Live Electrical LSMC16M-SP Live Electrical 13 Way SPD Metal Consumer Unit 2

Live Electrical 13 Way SPD Metal Consumer Unit

7 In stock
More available within 1-3 working days*
SKU: LSMC16M-SP
£48.81
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Live Electrical LEV440SP-BP IP65 EV Consumer Unit with 40A B Curve EV-Optimised RCBO, SPD, and Busbar Live Electrical LEV440SP-BP IP65 EV Consumer Unit B40 RCBO + Type 2 SPD + Busbar

Live Electrical LEV440SP-BP IP65 EV Consumer Unit B40 RCBO + Type 2 SPD + Busbar

9 In stock
More available within 1-3 working days*
SKU: LEV440SP-BP
£30.99

3-£29.44£1.55£30.99
5-£28.67£2.32£30.99
10-£27.89£3.10£30.99
20-£26.34£4.65£30.99
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Hager ADB416U Hager ADB416U RCBO 10kA B-16A 30mA Type A

Hager ADB416U RCBO 10kA B-16A 30mA Type A

Delivery usually within 1-3 working days*
SKU: ADB416U
£35.76
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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

11 In stock
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SKU: MMGU05-SR
£41.98
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WCED WKC140B 10kA 1 Pole MCB Curve B 40A

WCED WKC140B 10kA 1 Pole MCB Curve B 40A

Delivery usually within 1-3 working days*
SKU: WKC140B
£2.65

5-£2.54£0.11£2.65
10-£2.48£0.17£2.65
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WCED WKC163B 10kA 1 Pole MCB Curve B 63A

WCED WKC163B 10kA 1 Pole MCB Curve B 63A

Delivery usually within 1-3 working days*
SKU: WKC163B
£2.65

5-£2.54£0.11£2.65
10-£2.48£0.17£2.65
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Live Electrical MS4125D 4 Pole 125A Main Switch

Live Electrical MS4125D 4 Pole 125A Main Switch

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SKU: MS4125D
£12.26
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Live Electrical CB132D Live Electrical CB132D 32A Curve D 10kA MCB 1Live Electrical CB132D Live Electrical CB132D 32A Curve D 10kA MCB 2

Live Electrical CB132D 32A Curve D 10kA MCB

20 In stock
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SKU: CB132D
£2.95
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Live Electrical CB140D Live Electrical CB140D 40A Curve D 10kA MCB 1Live Electrical CB140D Live Electrical CB140D 40A Curve D 10kA MCB 2

Live Electrical CB140D 40A Curve D 10kA MCB

17 In stock
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SKU: CB140D
£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

6 In stock
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SKU: MAC2P40
£9.79
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Live Electrical MAC4P20 Live Electrical MAC4P20 20AModular AC Contactor 4 Pole NO 1Live Electrical MAC4P20 Live Electrical MAC4P20 20AModular AC Contactor 4 Pole NO 2

Live Electrical MAC4P20 20AModular AC Contactor 4 Pole NO

9 In stock
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SKU: MAC4P20
£12.99
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WCED ARD440-030 4 Pole 40A 30mA Type A High Immunity RCD WCED ARD440-030 WCED 4 Pole 40A 30mA Type A High Immunity RCD 2

WCED ARD440-030 4 Pole 40A 30mA Type A High Immunity RCD

4 In stock
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SKU: ARD440-030
£18.93

2-£17.98£0.95£18.93
3-£17.51£1.42£18.93
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WCED WKB463B WCED 4 Pole 63A B Curve 10 kA MCB 1WCED WKB463B WCED 4 Pole 63A B Curve 10 kA MCB 2

WCED 4 Pole 63A B Curve 10 kA MCB

Delivery usually within 1-3 working days*
SKU: WKB463B
£13.45

5-£12.91£0.54£13.45
10-£12.58£0.87£13.45
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WCED WMEPME12/LBK PME Fault Detection Unit with Load Management 12 Mod c/w C40 RCBO Relays and SPD 1WCED WMEPME12/LBK PME Fault Detection Unit with Load Management 12 Mod c/w C40 RCBO Relays and SPD 2

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

1 In stock
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SKU: WMEPME12/LBK
£140.28

2-£137.47£2.81£140.28
3-£136.07£4.21£140.28
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FuseBox MT10C201 FuseBox MT10C201 20A Single Pole 10kA C Curve MCB

FuseBox MT10C201 20A Single Pole 10kA C Curve MCB

16 In stock
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SKU: MT10C201
£3.22
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FuseBox MT10C203 FuseBox MT10C203 20A Triple Pole 10kA C Curve MCB

FuseBox MT10C203 20A Triple Pole 10kA C Curve MCB

Delivery usually within 1-3 working days*
SKU: MT10C203
£9.51
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WCED BBF2100 WCED 2 Pole 100A Busbar Forked Type - 13 Ways

WCED 2 Pole 100A Busbar Forked Type – 13 Ways

19 In stock
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SKU: BBF2100
£8.40
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Live Electrical LSMC8M-SP Live Electrical 5 Way SPD Metal Consumer Unit 1Live Electrical LSMC8M-SP Live Electrical 5 Way SPD Metal Consumer Unit 2

Live Electrical 5 Way SPD Metal Consumer Unit

5 In stock
More available within 1-3 working days*
SKU: LSMC8M-SP
£40.91
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Live Electrical LSMC18M-SP Live Electrical 15 Way SPD Metal Consumer Unit 1Live Electrical LSMC18M-SP Live Electrical 15 Way SPD Metal Consumer Unit 2

Live Electrical 15 Way SPD Metal Consumer Unit

12 In stock
More available within 1-3 working days*
SKU: LSMC18M-SP
£51.42
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Live Electrical RNA16B-030 RCBO A Type DP Bi-Directional 16A B Curve 30mA

Live Electrical RNA16B-030 RCBO A Type DP Bi-Directional 16A B Curve 30mA

Delivery usually within 1-3 working days*
SKU: RNA16B-030
£16.06
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Showing 441–460 of 1793 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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