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Circuit Protection

Circuit Protection by Brand

Circuit Protection by Brand (1941)

Consumer Units

Consumer Units (477)

Circuit Protection Devices

Circuit Protection Devices (1068)

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Three Phase Distribution Boards (93)

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Switch Fuses - Isolators (176)

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Street Lighting Circuit Protection

Street Lighting Circuit Protection (13)

Showing 1301–1320 of 2370 results

FuseBox MT10D061 FuseBox MT10D061 6A Single Pole 10kA D Curve MCB

FuseBox MT10D061 6A Single Pole 10kA D Curve MCB
11 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10D061
£3.22
FuseBox MT10D631 63A Single Pole 10kA D Curve MCB

FuseBox MT10D631 63A Single Pole 10kA D Curve MCB
9 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10D631
£3.34
FuseBox MT10D202 20A Double Pole 10kA D Curve MCB

FuseBox MT10D202 20A Double Pole 10kA D Curve MCB
12 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10D202
£6.68
FuseBox MT10D322 32A Double Pole 10kA D Curve MCB

FuseBox MT10D322 32A Double Pole 10kA D Curve MCB
11 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10D322
£6.68
FuseBox MT10D402 40A Double Pole 10kA D Curve MCB

FuseBox MT10D402 40A Double Pole 10kA D Curve MCB
Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: MT10D402
£6.68
FuseBox MT10D502 50A Double Pole 10kA D Curve MCB

FuseBox MT10D502 50A Double Pole 10kA D Curve MCB
2 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10D502
£6.95
FuseBox MT10C503 FuseBox MT10C503 50A Triple Pole 10kA C Curve MCB

FuseBox MT10C503 50A Triple Pole 10kA C Curve MCB
7 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10C503
£9.88
FuseBox MT10D103 FuseBox MT10D103 10A Triple Pole 10kA D Curve MCB

FuseBox MT10D103 10A Triple Pole 10kA D Curve MCB
3 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MT10D103
£9.51
FuseBox RTA0800304 Fusebox RTA0800304 80A 4 Pole 30MA Type A RCD

Fusebox RTA0800304 80A 4 Pole 30mA Type A RCD
4 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: RTA0800304
£24.38
Live Electrical ENC0865 Live Electrical 8 Way Enclosure IP65 H:185 x W:190 x D:110mm

Live Electrical ENC0865 IP65 8 Way Enclosure
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: ENC0865
£22.35
Live Electrical RDA480-100 4 Pole Type A 80A 100mA RCD

Live Electrical | RDA480-100 | 4 Pole | Bi-Directional Type A RCD | 6kA | 100mA | 80A
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: RDA480-100
£19.99
Surge Devices 10812/LED 50kA Type 1+2+3 Single Phase SPD with LED Indication

Surge Devices 10812/LED 50kA Type 1+2+3 Single Phase SPD with LED Indication
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10812/LED
£243.00
Surge Devices 800914 Surge Devices 800914 Type 1+2+3 100kA 3 Phase SPD with Window Indication and Pluggable Modules

Surge Devices 800914 Type 1+2+3 SPD – 3-Phase Lightning Arrester for TN-S & TNC-S Installations
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 800914
£435.00
Surge Devices 10020/4ENC Surge Devices Type 1+2+3 50kA 3 Phase Lightning and Surge Arrester with Indication in IP65 Polycarbonate Enclosure

Surge Devices 10020/4ENC 50kA Type 1+2+3 Three Phase SPD in IP65 Enclosure
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10020/4ENC
£330.00
Surge Devices 10020/2ENC Surge Devices Type 1+2+3 25kA Single Phase Lightning and Surge Arrester with Indication in IP65 Polycarbonate Enclosure

Surge Devices 10020/2ENC Type 1+2+3 SPD – 25kA Single Phase Lightning Arrester in IP65 Enclosure
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10020/2ENC
£174.00
Surge Devices 10020/2ENCM Surge Protection Devices 10020/2/ENCM

Surge Devices 10020/2ENCM Type 1+2+3 SPD – Single-Phase 25kA Lightning Arrester in IP65 Enclosure with 63A MCB
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 10020/2ENCM
£180.00
Surge Devices SY12325KA2P/ENC Surge Devices SY12325KA2P/ENC

Surge Devices SY12325KA2P/ENC Type 1+2+3 SPD – 25kA Single Phase Lightning Arrester in IP65 Enclosure
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY12325KA2P/ENC
£174.00
Surge Devices SY2-D/ENC Surge Devices Type 2+3 Single Module 2P SPD with Replaceable Modules and Window Indication in A 2 Module Box

Surge Devices SY2-D/ENC Single Phase Type 2/3 SPD in Enclosure
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: SY2-D/ENC
£46.80
Surge Devices 320002/ENC Surge Devices Type 2 Single Module 2P SPD with Replaceable Modules

Surge Devices 320002/ENC Type 2/3 SPD in IP65 Enclosure
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: 320002/ENC
£50.05
Surge Devices LSPDPV600 SPD Type 1 & 2 600V DC for Solar/PV Installations

Surge Devices LSPDPV600 Type 1+2 PV SPD for 600V Solar Installations
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
Read More
SKU: LSPDPV600
Quantity Discount
Quantity Price
1 £96.00
2+ £94.08
3+ £93.12
£96.00

Showing 1301–1320 of 2370 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.

Thousands of products in stock ready for next day delivery. Friendly and reliable service, competitive prices.

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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