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Circuit Protection

Circuit Protection by Brand (1883)

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Circuit Protection Devices (1052)

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Three Phase Distribution Boards (93)

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Street Lighting Circuit Protection (13)

WT2M Rail Mounted Digital Timer

WCED | WT2M | Rail Mounted Digital Timer | Weekly | 16A

SKU: WT2M

£21.75

Live Electrical RNA6B-030 RCBO A Type DP Bi-Directional 6A B Curve 30mA

Live Electrical RNA6B-030 RCBO A Type DP Bi-Directional 6A B Curve 30mA

SKU: RNA6B-030

£10.43

Live Electrical MDAC4P63/24V 4 Pole 63A 4NO AC Contactor/24V DC Coil

Live Electrical MDAC4P63/24V – 4 Pole 63A 4NO 24V DC Coil Modular Contactor

SKU: MDAC4P63/24V

£18.20

Live Electrical FMC06 6 Module Flush Mounted Metal Enclosure

Live Electrical FMC06 6 Module Flush Mounted Metal Enclosure

SKU: FMC06

£28.73

Live Electrical FMC10M-SP 7 Way Flush SPD Metal Consumer Unit

Live Electrical FMC10M-SP 7 Way Flush SPD Metal Consumer Unit

SKU: FMC10M-SP

£61.58

Live Electrical FMC12M-SP 9 Way Flush SPD Metal Consumer Unit

Live Electrical FMC12M-SP 9 Way Flush SPD Metal Consumer Unit

SKU: FMC12M-SP

£64.88

WCED WKC332B 10kA 3 Pole MCB Curve B 32A

WCED | WKC332B | 10kA | Curve B | 3 Pole Bi-Directional MCB | 32A

SKU: WKC332B

£8.61

WCED WKC306C 10kA 3 Pole MCB Curve C 6A

WCED | WKC306C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 6A

SKU: WKC306C

£8.61

Hager CDB525HP 30mA 25A RCCB 1P+N Type B HP for Heat Pumps

Hager CDB525HP 30mA 25A RCCB 1P+N Type B HP for Heat Pumps

SKU: CDB525HP

£146.98

Niglon PMCB10C1-32 32A Single Pole 10kA Curve C MCB

Niglon PMCB10C1-32 32A Single Pole 10kA Curve C MCB

6 In Stock

SKU: PMCB10C1-32

£3.42

Niglon PRCB01C1-32 1P + Neutral 32A Curve C Bi-Directional 10kA RCBO

Niglon PRCBO10C1-32 1P + Neutral 32A Curve C Bi-Directional 10kA RCBO

8 In Stock

SKU: PRCBO10C1-32

£19.21

Fusebox F3014DT 14 Way 2x100A Dual Tariff Consumer Unit

Fusebox F3014DT 14 Way 2x100A Dual Tariff Consumer Unit

8 In Stock

This item cannot be back-ordered

SKU: F3014DT

£45.02

FuseBox MT06C251 25A C Curve Miniature Circuit Breaker

FuseBox MT06B251 25A MCB Curve B

17 In Stock

SKU: MT06B251

£1.95

WCED 4 Pole 63A 30mA Type A RCD

WCED | WAR463-030 | Bi-Directional | Type A RCD | 4 Pole | 63A | 30mA

SKU: WAR463-030

Quantity Discount

Quantity	Price
1	£17.45 £20.94
2+	£16.93 £20.32
3+	£16.58 £19.90

£17.45

Garo 63A 2 Pole Type A 100mA Bi-Directional RCCB

Garo DCCB63-2-1 63A 2 Pole Type A 100mA Bi-Directional RCCB

SKU: DCCB63-2-1

£24.06

Garo 63A 2 Pole Type A 300mA Time Delay Bi-Directional RCCB

Garo DCCB63-2-3S 63A 2 Pole Type A 300mA Time Delay Bi-Directional RCCB

SKU: DCCB63-2-3S

£45.50

FuseBox R3PN10C3230BD Curve C 3 Phase 32A RCBO

FuseBox 3 Phase RCBO - Front

FuseBox R3PN10C3230BD 32A 3P+N Curve C Bi-Directional RCBO

7 In Stock

SKU: R3PN10C3230BD

£64.72

WCED WRT106C-030 Bi-Directional 10kA Type A 30mA RCBO Curve C 6A

WCED WRT106C-030 Bi-Directional 10kA Type A 30mA RCBO Curve C 6A

SKU: WRT106C-030

£10.97

WCED WRT110B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 10A

WCED WRT110B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 10A

SKU: WRT110B-030

£10.97

WCED WRI3P32 32A DIN Rail Rotary Isolator Switch

WCED | WRI3P32 | 32A | 3 Pole | DIN Rail Rotary Isolator Switch

SKU: WRI3P32

£9.12

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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:

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.
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.
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.
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.
Surge Protection: Surge protection devices may be required to protect against voltage surges or lightning strikes, especially for sensitive electronic equipment.
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.
Circuit Isolation: BS 7671 also specifies requirements for circuit isolation devices such as switches and isolators.
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.
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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