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Circuit Protection

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EML-TU Dual Fuel Smart Prepayment Meter – MID Approved Tokenless Electric Meter

EML-TU Dual Fuel Smart Prepayment Meter – MID Approved Tokenless Electric Meter

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SKU: EML-TU
£190.59
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FuseBox SPD1MT2 T2 single module surge protection device with DIN rail mount and busbar connection for 230V single-phase circuits. Close-up of FuseBox SPD1MT2 surge protection device – compact Type 2 SPD for direct mounting in residential or commercial distribution boards.

Fusbox SPD1MT2 Single Module Type 2 SPD Surge Protection Device

14 In stock
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SKU: SPD1MT2
£27.72

3-£27.17£0.55£27.72
5-£26.33£1.39£27.72
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Hager JK104BA3 Hager JK104BA3 125A 4 Way TPN Board with Plain Door (Amendment 3)

Hager JK104BA3 125A 4 Way TPN Board with Plain Door (Amendment 3)

1 In stock
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SKU: JK104BA3
£148.90
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Hager JK030BEB Earth Bar - 2 x 15 Connections

Hager JK030BEB Earth Bar – 2 x 15 Connections

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SKU: JK030BEB
£60.54
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Hager JK01DC Door Document Clip (Pack of 10)

Hager JK01DC Door Document Clip (Pack of 10)

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SKU: JK01DC
£13.73
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Hager JK1/2TOPSHROUD Busbar Stack Top Shroud

Hager JK1/2TOPSHROUD Busbar Stack Top Shroud

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SKU: JK1/2TOPSHROUD
£16.26
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Hager JK1/INCOMSHROUD Main Incomer Shroud

Hager JK1/INCOMSHROUD Main Incomer Shroud

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SKU: JK1/INCOMSHROUD
£24.70
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Hager JK1/NEUTRALSHROUD Neutral Clear Shroud

Hager JK1/NEUTRALSHROUD Neutral Clear Shroud

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SKU: JK1/NEUTRALSHROUD
£4.94
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Hager JK100HK JK1 Horizontal Mechanical Connecting Kit

Hager JK100HK JK1 Horizontal Mechanical Connecting Kit

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SKU: JK100HK
£36.62
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Hager JK222PK Door Lock Kit

Hager JK222PK Door Lock Kit

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SKU: JK222PK
£17.59
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Hager VM01SP Hager VM01SP Rear Stand Off Plate

Hager VM01SP Rear Stand Off Plate

2 In stock
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SKU: VM01SP
£33.74
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Hager ADA106U Type A RCBO

Hager ADA160U RCBO 10kA C-10A 30mA Type A

9 In stock
This item cannot be back-ordered
SKU: ADA160U
£30.99
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Live Electrical TPN16-125 Live Electrical TPN16-125 125A 16 Way TPN Distribution Board 1Live Electrical TPN16-125 Live Electrical TPN16-125 125A 16 Way TPN Distribution Board 2

Live Electrical TPN16-125 125A 16 Way TPN Distribution Board

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SKU: TPN16-125
£224.90
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Live Electrical TPN24-125 Live Electrical TPN24-125 125A 24 Way TPN Distribution Board 1Live Electrical TPN24-125 Live Electrical TPN24-125 125A 24 Way TPN Distribution Board 2

Live Electrical TPN24-125 125A 24 Way TPN Distribution Board

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SKU: TPN24-125
£299.90
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Live Electrical TPN12-250 250A Live Electrical 12 Way TPN Distribution Board 1Live Electrical TPN12-250 250A Live Electrical 12 Way TPN Distribution Board 2

250A Live Electrical 12 Way TPN Distribution Board

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SKU: TPN12-250
£361.27
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Live Electrical TPN16-250 250A Live Electrical 16 Way TPN Distribution Board 1Live Electrical TPN16-250 250A Live Electrical 16 Way TPN Distribution Board 2

250A Live Electrical 16 Way TPN Distribution Board

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SKU: TPN16-250
£449.39
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Live Electrical TPN18-250 250A Live Electrical 18 Way TPN Distribution Board 1Live Electrical TPN18-250 250A Live Electrical 18 Way TPN Distribution Board 2

250A Live Electrical 18 Way TPN Distribution Board

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SKU: TPN18-250
£474.16
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Live Electrical TPN24-250 250A Live Electrical 24 Way TPN Distribution Board 1Live Electrical TPN24-250 250A Live Electrical 24 Way TPN Distribution Board 2

250A Live Electrical 24 Way TPN Distribution Board

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SKU: TPN24-250
£632.22
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Hager MTN163 MCB 6kA B-63

Hager MTN163 MCB 6kA B-63

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SKU: MTN163
£2.45
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Hager VML10606 Hager VML10606 Dual Row 6+6 Way Main Switch Consumer Unit

Hager VML10606 Dual Row 6+6 Way Main Switch Consumer Unit

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SKU: VML10606
£106.10
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Showing 1021–1040 of 1809 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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