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Circuit Protection

Showing 21–40 of 1744 results

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SPD Surge Protection Devices

SPD Surge Protection Devices (109)

IP65 EV Consumer Unit with Type A DP B40 RCBO and SPD IP65 EV Consumer Unit with Type A DP B40 RCBO and SPD

IP65 EV Consumer Unit with Type A DP B40 RCBO and SPD

Delivery usually within 1-3 working days*
SKU: WPRC40BSP
£36.38

3-£35.65£0.73£36.38
5-£35.02£1.36£36.38
10-£33.65£2.73£36.38
20-£31.83£4.55£36.38
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FuseBox F2010MX Fusebox F2010MX 10 Way RCBO Consumer Unit With SPD 1

Fusebox F2010MX 10 Way RCBO Consumer Unit With SPD

15 In stock
More available within 1-3 working days*
SKU: F2010MX
£58.95

2-£58.36£0.59£58.95
4-£57.77£1.18£58.95
8-£57.18£1.77£58.95
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FuseBox ADRBTPN Fusebox ADRBTPN Single TPN Din Rail Mounted Blank

Fusebox ADRBTPN Single TPN Din Rail Mounted Blank

474 In stock
More available within 1-3 working days*
SKU: ADRBTPN
£1.15
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Hager ADA332G Hager ADA332G RCBO 32 Amp B Type 30mA 6kA

Hager ADA332G RCBO 32 Amp B Type 30mA 6kA

20 In stock
More available within 1-3 working days*
SKU: ADA332G
£12.99
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Live Electrical RA120B-030 Live Electrical 30mA 20A RCBO 10kA Curve B Type A

Live Electrical 30mA 20A RCBO 10kA Curve B Type A

15 In stock
This item cannot be back-ordered
SKU: RA120B-030
£10.99
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FuseBox SF0100 FuseBox SF0100 100A SP&N Single Pole Fused Isolator Switch 1

FuseBox SF0100 100A SP&N Single Pole Fused Isolator Switch

45 In stock
More available within 1-3 working days*
SKU: SF0100
£27.50

12-£26.13£1.38£27.50
24-£25.44£2.06£27.50
48-£24.75£2.75£27.50
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PJW Meters MB-SPACER 19mm Meter Board Spacer

19mm Meter Board Spacer

443 In stock
More available within 1-3 working days*
SKU: MB-SPACER
£0.75
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WCED Type A Bi-Directional Curve B 6A 30mA RCBO - WRB106B-030

WCED Type A Bi-Directional Curve B 6A 30mA RCBO – WRB106B-030

26 In stock
More available within 1-3 working days*
SKU: WRB106B-030
£9.99

5-£9.49£0.50£9.99
10-£8.99£1.00£9.99
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Live Electrical AMR132B-030 32A RCBO with 30mA Type A protection and bi-directional design for solar and domestic use Live Electrical AMR132B-030 30mA Type A 32A 6kA B Curve Bi-Directional RCBO

Live Electrical AMR132B-030 30mA Type A 32A 6kA B Curve Bi-Directional RCBO

219 In stock
More available within 1-3 working days*
SKU: AMR132B-030
£9.88

10-£8.89£0.99£9.88
20-£8.40£1.48£9.88
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IP65 EV Consumer Unit with Type A DP C40 RCBO and SPD IP65 EV Consumer Unit with Type A DP C40 RCBO and SPD

IP65 EV Consumer Unit with Type A DP C40 RCBO and SPD

Delivery usually within 1-3 working days*
SKU: WPRC40CSP
£36.38

3-£35.65£0.73£36.38
5-£35.02£1.36£36.38
10-£33.65£2.73£36.38
20-£31.83£4.55£36.38
Add to quote
FuseBox RTAMB20 FuseBox RTAMB20 20A Mini Type A RCBO 1

FuseBox RTAMB20 20A Mini Type A RCBO

25 In stock
More available within 1-3 working days*
SKU: RTAMB20
£13.50
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FuseBox RTA064030B FuseBox RTA064030B 40A Type A RCBO 30mA 1

FuseBox RTA064030B 40A Type A RCBO 30mA

92 In stock
More available within 1-3 working days*
SKU: RTA064030B
£9.99
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FuseBox AMBM Fusebox AMBM Metal Blank (Pack Of 6) 1

Fusebox AMBM Metal Blank (Pack Of 6)

71 In stock
More available within 1-3 working days*
SKU: AMBM
£3.65
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FuseBox F2014MX FuseBox F2014MX 14 Way RCBO Consumer Unit With SPD 1

FuseBox F2014MX 14 Way RCBO Consumer Unit With SPD

16 In stock
More available within 1-3 working days*
SKU: F2014MX
£64.99

2-£63.69£1.30£64.99
4-£62.39£2.60£64.99
8-£59.79£5.20£64.99
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FuseBox F2006MX FuseBox F2006MX 6 Way RCBO Consumer Unit With SPD 1 FuseBox F2006MX 6 Way RCBO Consumer Unit With SPD

FuseBox F2006MX 6 Way RCBO Consumer Unit With SPD

6 In stock
More available within 1-3 working days*
SKU: F2006MX
£51.55

3-£50.78£0.77£51.55
6-£50.52£1.03£51.55
12-£50.00£1.55£51.55
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WCED Type A Bi-Directional Curve B 20A 30mA RCBO – WRB120B-030

WCED Type A Bi-Directional Curve B 20A 30mA RCBO – WRB120B-030

15 In stock
More available within 1-3 working days*
SKU: WRB120B-030
£9.99

5-£9.49£0.50£9.99
10-£8.99£1.00£9.99
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WCED WME2L/25 WCED Mini CU 2 Way Empty Enclosure 1WCED WME2L/25 WCED Mini CU 2 Way Empty Enclosure 2

WCED Mini CU 2 Way Empty Enclosure

Delivery usually within 1-3 working days*
SKU: WME2L/25
£7.47

5-£7.28£0.19£7.47
10-£7.10£0.37£7.47
20-£6.91£0.56£7.47
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Live Electrical AMR106B-030 30mA Type A 6A 6kA B Curve Bi-Directional RCBO Live Electrical AMR106B-030 30mA Type A 6A 6kA B Curve Bi-Directional RCBO

Live Electrical AMR106B-030 30mA Type A 6A 6kA B Curve Bi-Directional RCBO

204 In stock
More available within 1-3 working days*
SKU: AMR106B-030
£9.88

10-£8.89£0.99£9.88
20-£8.40£1.48£9.88
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FuseBox RTA061030B FuseBox RTA061030B 10A Type A RCBO 30mA 1

FuseBox RTA061030B 10A Type A RCBO 30mA

150 In stock
More available within 1-3 working days*
SKU: RTA061030B
£9.99
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Live Electrical RA116C-030 Live 30mA 16A RCBO 10kA Curve C Type A 1Live Electrical RA116C-030 Live 30mA 16A RCBO 10kA Curve C Type A 2

Live 30mA 16A RCBO 10kA Curve C Type A

45 In stock
This item cannot be back-ordered
SKU: RA116C-030
£10.99
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More products

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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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