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Circuit Protection

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Electrical Isolators & Switches

Electrical Isolators & Switches (110)

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Switch Gear & Accessories (198)

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Meter Boards & Installation Panels (4)

SPD Surge Protection Devices

SPD Surge Protection Devices (109)

Niglon RCBO1-32/30SAX2 32A RCBO – Type A, Curve B, 30mA, 6kA, Bi-Directional, Compact 18mm RCBO.

Niglon RCBO1-32/30SAX2 32A Curve B 30mA Bi-Directional A Type RCBO

Delivery usually within 1-3 working days*
SKU: RCBO1-32/30SAX2
£15.18
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Niglon RCBO1-40/30SAX2 40A RCBO – Type A, Curve B, 30mA, Bi-Directional, 6kA, Compact RCBO for high-load circuits.

Niglon RCBO1-40/30SAX2 40A Curve B 30mA Bi-Directional A Type RCBO

Delivery usually within 1-3 working days*
SKU: RCBO1-40/30SAX2
£15.18
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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

Delivery usually within 1-3 working days*
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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SKU: AFDD6B1-10A2
£86.66
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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

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

Delivery usually within 1-3 working days*
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

Delivery usually within 1-3 working days*
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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Live Electrical AMR140B-100 40A RCBO with 100mA Type A protection and bi-directional design for PV installations Live Electrical AMR140B-100 100mA Bi-Directional Type A Compact RCBO 40A B Curve

Live Electrical AMR140B-100 100mA Bi-Directional Type A Compact RCBO 40A B Curve

Delivery usually within 1-3 working days*
SKU: AMR140B-100
£9.99
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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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Front view of the Gewiss GW70436P 32A 4-pole rotary isolator switch with a red lockable emergency stop knob in a weather-resistant insulating enclosure. Front view of the Gewiss GW70436P 32A 4-pole rotary isolator switch with a red lockable emergency stop knob in a weather-resistant insulating enclosure.

Gewiss GW70436P 32A 4-Pole IP66/IP67/IP69 Rotary Isolator Switch

16 In stock
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SKU: GW70436P
£16.71
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Gewiss GW70438P 63A Rotary Isolator Switch featuring 4 poles, a red lockable emergency stop knob, and IP66/IP67/IP69-rated enclosure for outdoor and industrial applications. Gewiss GW70438P 63A Rotary Isolator Switch featuring 4 poles, a red lockable emergency stop knob, and IP66/IP67/IP69-rated enclosure for outdoor and industrial applications.

Gewiss GW70438P 63A 4-Pole IP66/IP67/IP69 Rotary Isolator Switch

6 In stock
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SKU: GW70438P
£28.79
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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

Delivery usually within 1-3 working days*
SKU: F2006MX/KIT5
£103.21
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Garo G6EV40PME EV Consumer Unit with 40A Type A RCBO and PEN Fault Detection – 18th Edition-Compliant Metal Enclosure

Garo G6EV40PME EV Consumer Unit with PEN Fault Detection and B40A Type A RCBO

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SKU: G6EV40PME
£90.75
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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

Delivery usually within 1-3 working days*
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

Delivery usually within 1-3 working days*
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 PCU1816M Protego 100A Twin Screw Main Switch 16 Way Metal Consumer Unit

Niglon PCU1816M Protego 100A Twin Screw Main Switch 16 Way Metal Consumer Unit

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SKU: PCU1816M
£46.98
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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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