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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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Showing 821–840 of 2370 results

FuseBox RTF250302 Type F RCD 25A 30mA 2P

FuseBox RTF250302 Type F RCD 25A 30mA 2P
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: RTF250302
£42.25
Live Electrical LEV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + BusbarLive Electrical LEV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + Busbar 2

Live Electrical LEV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + Busbar
19 In Stock
More available within:
Usually 1 - 2 Working Days
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SKU: LEV432SP-BP
Quantity Discount
Quantity Price
1 - 2 £30.99
3+ £29.44
5+ £28.67
10+ £26.96
20+ £25.41
£30.99
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
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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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
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: MDAC4P63/24V
£18.20
WCED WKC332B 10kA 3 Pole MCB Curve B 32A

WCED | WKC332B | 10kA | Curve B | 3 Pole Bi-Directional MCB | 32A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WKC332B
£8.61
WCED WKC306C 10kA 3 Pole MCB Curve C 6A

WCED | WKC306C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 6A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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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
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: CDB525HP
£146.98
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
More available within:
Usually 1 - 3 Working Days
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SKU: PRCBO10C1-32
£19.21
Fusebox F3004RA 4 Way 63A 30ma Type A RCD Consumer Unit

Fusebox F3004RA 4 Way 63A 30ma Type A RCD Consumer Unit
1 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: F3004RA
£38.44
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
More available within:
Usually 1 - 3 Working Days
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SKU: MT06B251
£1.95
Garo DNO5G 100A grey terminal block with 5 connection points, suitable for 2.5mm² to 35mm² cables in power distribution applications.

Garo DNO5G 100A 5 Way Grey Terminal Block
88 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: DNO5G
Quantity Discount
Quantity Price
1 - 9 £3.50
10+ £3.40
20+ £3.33
50+ £3.26
£3.50
WCED 4 Pole 63A 30mA Type A RCD

WCED | WAR463-030 | Bi-Directional | Type A RCD | 4 Pole | 63A | 30mA
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WAR463-030
Quantity Discount
Quantity Price
1 £17.45
2+ £16.93
3+ £16.58
£17.45
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
1 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: DCCB63-2-3S
£45.50
Garo DCBOGRB06 Compact RCBO 6A B Curve

Garo DCBOGRB06 30mA Type A Compact RCBO 6A B Curve
6 In Stock
More available within:
Usually 1 - 3 Working Days
Read More
SKU: DCBOGRB06
£10.99
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
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: WRT110B-030
£10.97
Timeguard TX3010 1 Module Blank Plastic DIN Rail

Timeguard | TX3010| 1 Module Blank Plastic DIN Rail
13 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: TX3010
£0.80
Live Electrical CB310B Live Electrical CB310B 3 Pole 10A B Curve 10kA MCB 1

Live Electrical | CB310B | 10kA | Curve B | 3 Pole Bi-Directional MCB | 10A
7 In Stock
More available within:
Usually 1 - 2 Working Days
Read More
SKU: CB310B
£8.37
Hager NDN363A 3 Pole MCB Type D 63A 10kA

Hager NDN363A 3 Pole MCB Type D 63A 10kA
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
Read More
SKU: NDN363A
£47.17
Hager NBN140A Hager NBN140A Single Pole Type B MCB 40A 10kA

Hager NBN140A Single Pole Type B MCB 40A 10kA
15 In Stock
More available within:
Usually 3 - 4 Working Days
Read More
SKU: NBN140A
£9.44

Showing 821–840 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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