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Circuit Protection

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SPD Surge Protection Devices

SPD Surge Protection Devices (110)

FuseBox F3048M 48 Way Triple Row RCBO Consumer Unit

FuseBox F3048M 48 Way Triple Row RCBO Consumer Unit

Delivery usually within 1-3 working days*
SKU: F3048M
£202.55
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Live Electrical ST1-12.5 4 Pole Type 1+2 SPD Surge Protection

Live Electrical ST1-12.5 4 Pole Type 1+2 SPD Surge Protection

Delivery usually within 1-3 working days*
SKU: ST1-12.5
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CM-CTL Contactless Card Meter – MID Approved Prepayment Electricity Meter

CM-CTL Contactless Card Meter – MID Approved Prepayment Electricity Meter

Delivery usually within 1-3 working days*
SKU: CM-CTL
£156.00
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CM100LCD Single Phase MID Approved Electricity Meter

CM100LCD Single Phase MID Approved Electricity Meter

Delivery usually within 1-3 working days*
SKU: CM100LCD
£35.20
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CM100LCD-ETC MID Approved Single Phase kWh Meter with Extended Terminal Cover

CM100LCD-ETC MID Approved Single Phase kWh Meter with Extended Terminal Cover

Delivery usually within 1-3 working days*
SKU: CM100LCD-ETC
£41.14
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CM100LCD-ETC-NET Single Phase Energy Bi-Directional Meter with NET Function

CM100LCD-ETC-NET Single Phase Energy Bi-Directional Meter with NET Function

Delivery usually within 1-3 working days*
SKU: CM100LCD-NET-ETC
£47.53
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IM3D-100A Three Phase MID Approved Meter with 4-Quadrant Measurement

IM3D-100A Three Phase MID Approved Meter with 4-Quadrant Measurement

Delivery usually within 1-3 working days*
SKU: IM3D-100A
£105.95
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IM3D-100A-NET MID Approved Three Phase Energy Meter with NET Parameter

IM3D-100A-NET MID Approved Three Phase Energy Meter with NET Parameter

Delivery usually within 1-3 working days*
SKU: IM3D-100A-NET
£118.95
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SW100-STEEL & SW100-12MM-STEEL Sealing Ferrules with Galvanised Wire

SW100-STEEL & SW100-12MM-STEEL Sealing Ferrules with Galvanised Wire

Delivery usually within 1-3 working days*
SKU: SW150-12MM-STEEL
£21.00
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Niglon ISM404P Metalclad 40A 4P rotary isolator – dust and splash-resistant switch for local isolation in electrical installations.

Niglon ISM404P Metal Clad IP54 40A 4P Rotary Isolator

Delivery usually within 1-3 working days*
SKU: ISM404P
£30.91
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Niglon ISM634P Rotary 63A 4 Pole Isolator in Metal Clad IP54 Enclosure

Niglon ISM634P Metal Clad IP54 63A 4P Rotary Isolator

Delivery usually within 1-3 working days*
SKU: ISM634P
£36.70
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Garo DCBO2MC40 40A 2 Pole RCBO with 30mA RCD – Compact 2-module device with C curve tripping for overload, short-circuit,, making it ideal for 40A EV charger installations.

Garo DCBO2MC40 30mA C Curve 40A Double Pole RCBO

20 In stock
More available within 1-3 working days*
SKU: DCBO2MC40
£20.79
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Niglon ISM804P Metal Clad 80A 4 Pole Rotary Isolator with IP54 Enclosure Heavy-duty electrical switch disconnector.

Niglon ISM804P Metal Clad 80A 4P IP54 Rotary Isolator

Delivery usually within 1-3 working days*
SKU: ISM804P
£41.58
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Niglon ISM1004P Metal Clad 100A 4 Pole Rotary Isolator for safe switching in industrial systems.

Niglon ISM1004P Metal Clad 100A 4 Pole IP54 Rotary Isolator

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SKU: ISM1004P
£68.58
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Niglon ISS324P Steel 32A 4 Pole Rotary Isolator – IP65-rated switch for commercial and light industrial systems.

Niglon ISS324P Stainless Steel 32A 4P IP65 Rotary Isolator

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SKU: ISS324P
£104.20
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FuseBox F3007MZ 7 Way SPD Consumer Unit Kit – with 5 RCBOs 7 Way RCBO Consumer Unit Kit with 100A Main Switch and SPD

FuseBox F3007MZ 7 Way SPD Consumer Unit Kit – with 5 RCBOs

Delivery usually within 1-3 working days*
SKU: F3007MZ/5RCBO
£105.25
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FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs Populated FuseBox 11 Way Consumer Unit – RCBO-Ready Kit

FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs

Delivery usually within 1-3 working days*
SKU: F3011MZ/8RCBO
£141.99
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FuseBox F3015MZ 15 Way SPD Consumer Unit Kit – with 12 RCBOs Complete Kit for Fast Installation – Populated FuseBox 15 Way Consumer Unit

FuseBox F3015MZ 15 Way SPD Consumer Unit Kit – with 12 RCBOs

Delivery usually within 1-3 working days*
SKU: F3015MZ/12RCBO
£185.30
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FuseBox F3021MZ 21 Way SPD Consumer Unit Kit – with 15 RCBOs Populated FuseBox 21 Way Consumer Unit Kit for Fast Installation

FuseBox F3021MZ 21 Way SPD Consumer Unit Kit – with 15 RCBOs

Delivery usually within 1-3 working days*
SKU: F3021MZ/15RCBO
£220.78
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Fusebox BB1001P 100A 1P Insulated Busbar – 1 meter

Delivery usually within 1-3 working days*
SKU: BB1001P
£15.06
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Showing 1781–1800 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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