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Circuit Protection

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Circuit Protection by Brand

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SPD Surge Protection Devices

SPD Surge Protection Devices (107)

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

Delivery usually within 1-3 working days*
SKU: AFDD6B1-16A2
£86.66
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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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SKU: AFDD6B1-20A2
£86.66
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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
£86.66
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Gewiss GW70433P 16A 4-Pole IP66/67/69 Rotary Isolator Switch Gewiss GW70433P 16A 4-Pole IP66/67/69 Rotary Isolator Switch

Gewiss GW70433P 16A 4-Pole IP66/67/69 Rotary Isolator Switch

16 In stock
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SKU: GW70433P
£14.95
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Gewiss GW70488P 25A Rotary Isolator Switch with red knob, 4-pole configuration, and IP66/IP67/IP69 protection for industrial and outdoor circuit isolation. Gewiss GW70488P 25A 4-Pole IP66/67/69 Rotary Isolator Switch

Gewiss GW70488P 25A 4-Pole IP66/67/69 Rotary Isolator Switch

16 In stock
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SKU: GW70488P
£15.79
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FuseBox F2006MX/KIT5 6 Way SPD Consumer Unit Kit with 5 RCBOs FuseBox F2006MX/KIT5 6 Way SPD Consumer Unit Kit with 5 RCBOs

FuseBox F2006MX/KIT5 6 Way SPD Consumer Unit Kit with 5 RCBOs

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SKU: F2006MX/KIT5
£103.21
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Live Electrical ENC18 PV3 3 – 18-Way Solar PV Consumer Unit | 3 String Input, 3 String Output DC | IP65 Rated

Live Electrical ENC18 PV3 – 18-Way Solar PV Consumer Unit | 3 String Input 3 String Output DC | IP65 Rated

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SKU: ENC18PV3
£254.14

2-£237.62£16.52£254.14
3-£224.91£29.23£254.14
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Niglon M3CU14SP/8RCBO SPD Consumer Unit Kit with 8 RCBOs Niglon M3CU14SP/8RCBO SPD Consumer Unit Kit with 8 RCBOs

Niglon M3CU14SP/8RCBO SPD Consumer Unit Kit with 8 RCBOs

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SKU: M3CU14SP/8RCBO
£125.42
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Niglon PCU1008M Protego 100A Twin Screw Main Switch 8 Way Metal Consumer Unit

Niglon PCU1008M Protego 100A Twin Screw Main Switch 8 Way Metal Consumer Unit

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SKU: PCU1008M
£34.33
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Niglon PCU1412M Protego 100A Twin Screw Main Switch 12 Way Metal Consumer Unit

Niglon PCU1412M Protego 100A Twin Screw Main Switch 12 Way Metal Consumer Unit

1 In stock
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SKU: PCU1412M
£41.96
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Niglon PCU2220M Protego 100A Twin Screw Main Switch 20 Way Metal Consumer Unit

Niglon PCU2220M Protego 100A Twin Screw Main Switch 20 Way Metal Consumer Unit

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SKU: PCU2220M
£54.70
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Niglon PCU2824M Protego 100A Twin Screw Main Switch 24 Way Dual Row Metal Consumer Unit

Niglon PCU2824M Protego 100A Twin Screw Main Switch 24 Way Dual Row Metal Consumer Unit

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SKU: PCU2824M
£118.17
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Niglon PCU3632M Protego 100A Twin Screw Main Switch 32 Way Dual Row Metal Consumer Unit

Niglon PCU3632M Protego 100A Twin Screw Main Switch 32 Way Dual Row Metal Consumer Unit

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SKU: PCU3632M
£151.74
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Niglon PCU0604M Protego 100A Twin Screw Main Switch 4Way Metal Consumer Unit

Niglon PCU0604M Protego 100A Twin Screw Main Switch 4 Way Metal Consumer Unit

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SKU: PCU0604M
£27.82
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Niglon PCU0402M Protego 100A Twin Screw Main Switch 2 Way Metal Consumer Unit

Niglon PCU0402M Protego 100A Twin Screw Main Switch 2 Way Metal Consumer Unit

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SKU: PCU0402M
£23.88
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Niglon PSTAND01 Protego 14 Module Rear Stand Off Plate

Niglon PSTAND01 Protego 14 Module Rear Stand Off Plate

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SKU: PSTAND01
£10.04
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Niglon PSTAND03 Protego 22 Module Rear Stand Off Plate

Niglon PSTAND03 Protego 22 Module Rear Stand Off Plate

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SKU: PSTAND03
£11.54
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Hager VM11214SPD Dual Row Consumer Unit – 12+14 way circuit capacity with 100A isolator and integrated Type 2 SPD in a fire-resistant metal enclosure.

Hager VM11214SPD Design 30 Dual Row Consumer Unit 12 + 14 Way 100A Main Switch Type 2 SPD

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SKU: VM11214SPD
£254.60
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Niglon PCU1412M/9RCBO Protego 11 Way Metal SPD Consumer Unit Kit with 9 RCBOs Niglon Protego 9 RCBOs SPD Consumer Unit Kit

Niglon PCU1412M/9RCBO Protego 11 Way Metal SPD Consumer Unit Kit with 9 RCBOs

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SKU: PCU1412M/9RCBO
£143.90
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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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