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Circuit Protection

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SPD Surge Protection Devices

SPD Surge Protection Devices (110)

Live Electrical WRB1-63N Wi-Fi Smart RCD Switch with kWh Metering and Earth Leakage Protection

Live Electrical WRB1-63N Wi-Fi Smart RCD Switch with kWh Metering and Earth Leakage Protection

Delivery usually within 1-3 working days*
SKU: WREB1-63N
£26.43
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Garo GMS5EV40R 5-Way IP65 EV Consumer Unit – 100A Isolator, 40A RCBO, Type 2 SPD IP65 EV Consumer Unit – 100A Isolator, 40A RCBO, Type 2 SPD - Garo GMS5EV40R 5-Way

Garo GMS5EV40R 5-Way IP65 EV Consumer Unit – 100A Isolator, 40A RCBO, Type 2 SPD

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SKU: GMS5EV40R
£60.36
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Garo GCUT4 4-module IP65-rated electrical enclosure with transparent UV-resistant door, impact-resistant housing, and flexible internal DIN mounting.

Garo GCUT4 Empty 4 Module IP65 Empty Enclosure

4 In stock
More available within 1-3 working days*
SKU: GCUT4
£14.85
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Live Electrical 10kA RCBO 32A Curve C Type A 30mA 1P+N

Live Electrical 10kA RCBO 32A Curve C Type A 30mA 1P+N

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SKU: RA132C-030
£10.99
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Live Electrical 10kA RCBO 20A Curve C Type A 30mA 1P+N

Live Electrical 10kA RCBO 20A Curve C Type A 30mA 1P+N

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SKU: RA120C-030
£10.99
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Hager ARL906U AFDD 6A Type A RCBO – single module safety device for overload, short circuit, arc fault, and residual current protection.

Hager ARL906U AFDD with 30mA RCBO 6A – Curve B Type A with 1m Neutral Fly Lead

Delivery usually within 1-3 working days*
SKU: ARL906U
£111.00
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Hager ARL910U RCBO – 10A, 6kA rated, B curve with arc fault and residual current protection in a compact 1-module format.

Hager ARL910U AFDD with 30mA RCBO 10A – Curve B Type A with 1m Neutral Fly Lead

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SKU: ARL910U
£111.00
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Technical sheet for Hager ARL956U – 6A C Curve arc fault and residual protection RCBO, 6kA rated with 1m fly lead.

Hager ARL956U AFDD with 30mA RCBO 6A – Curve C Type A with 1m Neutral Fly Lead

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SKU: ARL956U
£111.00
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Hager ARL916U 6kA 16A RCBO with arc fault detection, B curve tripping, and 30mA Type A residual current protection.

Hager ARL916U AFDD with 30mA RCBO 16A – Curve B Type A with 1m Neutral Fly Lead

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SKU: ARL916U
£111.00
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Hager ARL920U RCBO – 20A single-module breaker with B curve, 30mA RCD, arc fault detection, and 1m fly lead for compact installs.

Hager ARL920U AFDD with 30mA RCBO 20A – Curve B Type A with 1m Neutral Fly Lead

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SKU: ARL920U
£111.00
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Hager ARL960U AFDD RCBO – 10A, 1-module protective device for arc, overload, and residual current faults with Bluetooth diagnostics.

Hager ARL960U AFDD with 30mA RCBO 10A – Curve C Type A with 1m Neutral Fly Lead

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SKU: ARL960U
£111.00
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Hager ARL966U 16A AFDD RCBO – single-module device with Curve C trip and Bluetooth diagnostics for advanced circuit protection.

Hager ARL966U AFDD with 30mA RCBO 16A – Curve C Type A with 1m Neutral Fly Lead

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SKU: ARL966U
£111.00
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Hager ARL970U 20A AFDD RCBO – single-module circuit protection with arc fault detection, Type A RCD, and Curve C tripping.

Hager ARL970U AFDD with 30mA RCBO 20A – Curve C Type A with 1m Neutral Fly Lead

Delivery usually within 1-3 working days*
SKU: ARL970U
£111.00
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Hager ARL975U 25A RCBO with AFDD – single-module arc fault and residual current circuit protector with Curve C tripping.

Hager ARL975U AFDD with 30mA RCBO 25A – Curve C Type A with 1m Neutral Fly Lead

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SKU: ARL975U
£111.00
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Hager ARL925U AFDD with 30mA RCBO 25A – Curve B Type A with 1m Neutral Fly Lead

Hager ARL925U AFDD with 30mA RCBO 25A – Curve B Type A with 1m Neutral Fly Lead

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SKU: ARL925U
£111.00
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🛡️ Hager ARL932U AFDD with 30mA RCBO 32A – Curve B Type A with 1m Neutral Fly Lead

Hager ARL932U AFDD with 30mA RCBO 32A – Curve B Type A with 1m Neutral Fly Lead

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SKU: ARL932U
£111.00
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Niglon MFTP Multifunction Multi Voltage DIN Rail Mounted Timer

Niglon MFTP Multifunction Multi Voltage DIN Rail Mounted Timer

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SKU: MFTP
£22.34
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Niglon DOST Delay On Single Function DIN Rail Mounted Timer

Niglon DOST Delay On Single Function DIN Rail Mounted Timer

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SKU: DOST
£19.88
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Niglon TDOT True Delay Off DIN Rail Mounted Timer

Niglon TDOT True Delay Off DIN Rail Mounted Timer

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SKU: TDOT
£31.50
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Niglon VMT1 DIN Rail Mounted Voltage Monitor

Niglon VMT1 DIN Rail Mounted Voltage Monitor

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SKU: VMT1
£20.05
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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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