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Circuit Protection

Showing 141–160 of 2375 results

WCED Type A High Immunity Curve C 32A 30mA RCBO

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: WRB132C-030
£9.00

Live Electrical RNA16B-030 RCBO A Type DP Bi-Directional 16A B Curve 30mA

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: RNA16B-030
£10.43

Live Electrical MS2100 100A Double Pole Main Switch

3 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: MS2100
£4.37

Live Electrical | SPV240 | 2-Pole | Type 2 DC Surge Device | For Circuits up to 1000V

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: SPV240
£14.82

FuseBox | RTA102030C | 10kA | 30mA | Curve C | Type A RCBO | 20A

32 In Stock
More available within:
Usually 2 - 4 Working Days
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SKU: RTA102030C
£15.99

FuseBox | RTA102030B | 10kA | 30mA | Curve B | Type A RCBO | 20A

28 In Stock
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Usually 2 - 4 Working Days
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SKU: RTA102030B
£15.99
FuseBox F3021MZ 21 Way SPD Consumer Unit Kit – with 15 RCBOsPopulated FuseBox 21 Way Consumer Unit Kit for Fast Installation

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

In Stock
SKU: F3021MZ/15RCBO
£222.78 £218.73
Live Electrical LEVB240 2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO 1Live Electrical LEVB240 2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO 2

2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: LEVB240
£29.50 £22.50

FuseBox | RTA065030B | 6kA | 30mA | Curve B | Type A RCBO | 50A

95 In Stock
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Usually 2 - 4 Working Days
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SKU: RTA065030B
£9.99

WCED | WMIP40BSP | IP65 Metal EV Protection Unit | Type A 40A B Curve RCBO & Type 2 SPD

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: WMIP40BSP
Quantity Discount
Quantity Price
1 £44.78
2+ £43.88
3+ £42.54
5+ £41.42
10+ £40.30
£44.78
6A Double Pole Single Module RCBO

Live Electrical | RNC106B-030N | 6kA 30mA | Type A B Curve | Bi-Directional Double Pole RCBO | 6A

271 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: RNC106B-030N
£9.75

Live Electrical 10kA RCBO 40A Curve B Type A 30mA 1P+N

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
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SKU: RA140B-030
£10.99

Live Electrical | CB110B | 10kA | Curve B | 1 Pole Bi-Directional MCB | 10A

13 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: CB110B
£2.95

Live Electrical MAC2P32 – 2 Pole 32A 2NO 230V AC Modular Contactor

7 In Stock
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Usually 2 - 3 Working Days
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SKU: MAC2P32
£9.79

WCED Metal Fused Main Switch with 3 Fuses & SPD

Out of Stock
Expected back in stock mid-June
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SKU: WFMS100/3FSP
£61.96

Live Electrical Double Pole 100A Copper Busbar 1m 16mm² 54 Pin

14 In Stock
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Usually 2 - 3 Working Days
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SKU: DPC100
£11.36

Live Electrical | CB106C | 10kA | Curve C | 1 Pole Bi-Directional MCB | 6A

17 In Stock
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Usually 2 - 3 Working Days
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SKU: CB106C
£2.95
FuseBox RTAMB25 25A Mini Type A RCBOFuseBox RTAMB25 25A Mini Type A RCBO 2

FuseBox RTAMB25 25A Mini Type A RCBO

19 In Stock
This item cannot be back-ordered
SKU: RTAMB25
£13.50 £12.49

FuseBox F3011MZ 11 Way RCBO Consumer Unit With SPD

19 In Stock
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Usually 2 - 4 Working Days
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SKU: F3011MZ
Quantity Discount
Quantity Price
1 - 7 £60.11
8+ £57.41
£60.11

WCED | WMC140B | 6kA | Curve B | 1 Pole Bi-Directional MCB | 40A

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: WMC140B
£1.37

Showing 141–160 of 2375 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.