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Circuit Protection

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SPD Surge Protection Devices (109)

Niglon CT60HYD Panel Thermostat with Humidistat

Niglon CT60HYD Panel Thermostat with Humidistat

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SKU: CT60HYD
£27.36
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Niglon CT60NC Panel Thermostat

Niglon CT60NC Panel Thermostat

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SKU: CT60NC
£8.90
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Niglon CT60NO Panel Thermostat

Niglon CT60NO Panel Thermostat

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SKU: CT60NO
£8.90
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Niglon BBC2024 200A Busbar Chamber

Niglon BBC2024 200A Busbar Chamber

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SKU: BBC2024
£912.60
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Niglon BBC4034 400A Busbar Chamber

Niglon BBC4034 400A Busbar Chamber

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SKU: BBC4034
£1,079.00
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Niglon M3CU4GAR/32-A RCD Type A Garage Consumer Unit Niglon M3CU4GAR/32-A RCD Type A Garage Consumer Unit

Niglon M3CU4GAR/32-A RCD Type A Garage Consumer Unit

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SKU: M3CU4GAR/32-A
£33.03
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Niglon M3CU8SP 100A DP Main Switch SPD Consumer Unit, 4 Usable Ways, Ideal for RCBO Setup, BS7671:2018 Compliant, 18th Edition Consumer Unit.

Niglon M3CU8SP 100A DP 4 Way Main Switch SPD Consumer Unit

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SKU: M3CU8SP
£54.49
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Niglon M3CU10SP 100A DP Main Switch SPD Consumer Unit, 6 Usable Ways, Ideal for RCBO Setup, BS7671:2018 Compliant, 18th Edition Consumer Unit.

Niglon M3CU10SP 100A DP Main Switch 6 Way SPD Consumer Unit

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SKU: M3CU10SP
£59.14
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Niglon M3CU16SP – 100A DP SPD Consumer Unit, 12 Usable Ways, RCBO Compatible.

Niglon M3CU16SP 100A DP Main Switch 12 Way SPD Consumer Unit

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SKU: M3CU16SP
£75.99
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Niglon M3CU18SP 100A DP Main Switch Type 2 SPD Consumer Unit, 14 Usable Ways, Ideal for RCBO Setup, BS7671:2018 Compliant, 18th Edition Consumer Unit.

Niglon M3CU18SP 100A DP Main Switch 14 Way SPD Consumer Unit

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SKU: M3CU18SP
£73.97
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Niglon M3CU21SP Consumer Unit, 100A Main Switch, 17 Usable Ways, 21 Modules, Type 2 SPD, BS7671:2018 Compliant.

Niglon M3CU21SP 100A DP Main Switch 17 Way SPD Consumer Unit

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SKU: M3CU21SP
£80.51
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Niglon RCBO1-20/30SSAX 20A Curve B 30mA A Type RCBO

Niglon RCBO1-20/30SSAX 20A Curve B 30mA A Type RCBO

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SKU: RCBO1-20/30SSAX
£13.20
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Niglon RCBO1-10/30SAX2 10A RCBO – Bi-Directional, Type A, Curve B, 30mA, 6kA, Compact 18mm Width.

Niglon RCBO1-10/30SAX2 10A Curve B 30mA Bi-Directional A Type RCBO

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Niglon RCBO1-25/30SAX2 25A RCBO – Bi-Directional, Type A, Curve B, 30mA, Compact 18mm, 6kA Rated.

Niglon RCBO1-25/30SAX2 25A Curve B 30mA Bi-Directional A Type RCBO

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SKU: RCBO1-25/30SAX2
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Niglon AFDD6B1-6A2 1P+N 30mA Curve B 6kA Bi-Directional AFDD RCBO

Niglon AFDD6B1-6A2 1P+N 30mA Curve B 6A Bi-Directional AFDD RCBO

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SKU: AFDD6B1-6A2
£86.66
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Niglon AFDD6B1-10A2 1P+N 30mA Curve B 6kA Bi-Directional AFDD RCBO

Niglon AFDD6B1-10A2 1P+N 30mA Curve B 10A Bi-Directional AFDD RCBO

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Niglon AFDD6B1-16A2 1P+N 30mA Curve B 6kA Bi-Directional AFDD RCBO

Niglon AFDD6B1-16A2 1P+N 30mA Curve B 16A Bi-Directional AFDD RCBO

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Niglon AFDD6B1-20A2 1P+N 30mA Curve B 6kA Bi-Directional AFDD RCBO

Niglon AFDD6B1-20A2 1P+N 30mA Curve B 20A Bi-Directional AFDD RCBO

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Niglon AFDD6B1-32A2 1P+N 30mA Curve B 6kA Bi-Directional AFDD RCBO

Niglon AFDD6B1-32A2 1P+N 30mA Curve B 32A Bi-Directional AFDD RCBO

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SKU: AFDD6B1-32A2
£86.66
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Niglon AFDD6B1-40A2 1P+N 30mA Curve B 6kA Bi-Directional AFDD RCBO

Niglon AFDD6B1-40A2 1P+N 30mA Curve B 40A Bi-Directional AFDD RCBO

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SKU: AFDD6B1-40A2
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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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