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Circuit Protection

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SPD Surge Protection Devices (107)

Hager KF83D Connection Terminal 1P Prong 1x35mm² - Pack of 1

Hager KF83D Connection Terminal 1P Prong 1x35mm² – Pack of 1

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SKU: KF83D
£6.60
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Hager EGN100 Multi Function Time Switch 1 Channel Bluetooth

Hager EGN100 Multi Function Time Switch 1 Channel Bluetooth

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SKU: EGN100
£128.48
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Hager CNA584U RCCB 1P+N 100A 100mA A Class

Hager CNA584U RCCB 1P+N 100A 100mA A Class – Time Delayed

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SKU: CNA584U
£96.70
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Hager CPA584U RCCB 1P+N 100A 300mA A Class - Time Delayed

Hager CPA584U RCCB 1P+N 100A 300mA A Class – Time Delayed

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SKU: CPA584U
£266.48
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Live Electrical 3P+N 10A B Curve 30mA Type A RCBO

Live Electrical 3P+N 10A B Curve 30mA Type A RCBO

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SKU: RTN310B-030N
£79.95
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Live Electrical 3P+N 16A C Curve 30mA Type A RCBO

Live Electrical 3P+N 16A C Curve 30mA Type A RCBO

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SKU: RTN316C-030N
£79.95
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Live Electrical 3P+N 50A C Curve 30mA Type A RCBO

Live Electrical 3P+N 50A C Curve 30mA Type A RCBO

1 In stock
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SKU: RTN350C-030N
£79.95
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Live Electrical RNA20C-030 RCBO A Type DP Bi-Directional 20A C Curve 30mA

Live Electrical RNA20C-030 RCBO A Type DP Bi-Directional 20A C Curve 30mA

9 In stock
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SKU: RNA20C-030
£16.06
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Live Electrical CB220B 2 Pole MCB 20A B Curve

Live Electrical CB220B 2 Pole 10kA MCB 20A B Curve

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SKU: CB220B
£5.89
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Live Electrical CB232B 2 Pole MCB 32A B Curve

Live Electrical CB232B 2 Pole 10kA MCB 32A B Curve

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SKU: CB232B
£5.89
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Live Electrical CB240B 2 Pole MCB 40A B Curve

Live Electrical CB240B 2 Pole 10kA MCB 40A B Curve

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SKU: CB240B
£5.89
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Live Electrical CB250B 2 Pole MCB 50A B Curve

Live Electrical CB250B 2 Pole 10kA MCB 50A B Curve

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SKU: CB250B
£6.40
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Live Electrical CB263D 2 Pole MCB 63A D Curve

Live Electrical CB263D 2 Pole 10kA MCB 63A D Curve

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SKU: CB263D
£6.40
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Live Electrical CZ1100C 1P 100A MCB 10kA Curve C

Live Electrical CZ1100C 1P 100A MCB 10kA Curve C

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SKU: CZ1100C
£6.15
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Live Electrical CZ280B 2P 80A MCB 10kA Curve B

Live Electrical CZ280B 2P 80A MCB 10kA Curve B

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SKU: CZ280B
£12.87
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Live Electrical LS-MB14 14 Module LSMC Mounting Bracket

Live Electrical LS-MB14 14 Module LSMC Mounting Bracket

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SKU: LS-MB14
£9.00
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Live Electrical LSMC08 8 Module Metal Enclosure Live Electrical LSMC08 8 Module Metal Enclosure

Live Electrical LSMC08 8 Module Metal Enclosure

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SKU: LSMC08
£26.44
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Live Electrical LSMC14 14 Module Metal Enclosure Live Electrical LSMC14 14 Module Metal Enclosure

Live Electrical LSMC14 14 Module Metal Enclosure

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SKU: LSMC14
£34.32
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Live Electrical FMC14 14 Module Flush Mounted Metal Enclosure Live Electrical FMC14 14 Module Flush Mounted Metal Enclosure

Live Electrical FMC14 14 Module Flush Mounted Metal Enclosure

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SKU: FMC14
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Live Electrical FMC8M-SP 5 Way Flush SPD Metal Consumer Unit

Live Electrical FMC6M-SP 3 Way Flush SPD Metal Consumer Unit

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£54.82
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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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