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Circuit Protection

Showing 301–320 of 1760 results

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SPD Surge Protection Devices

SPD Surge Protection Devices (109)

FuseBox RTA100630C FuseBox RTA100630C 6A 30mA 10kA C Curve Type A RCBO

FuseBox RTA100630C 6A 30mA 10kA C Curve Type A RCBO

34 In stock
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SKU: RTA100630C
£17.44
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FuseBox RTAMB20BD Bi-Directional Mini RCBO 20A B Curve 30mA Type A

FuseBox RTAMB20BD Bi-Directional Mini RCBO 20A B Curve 30mA Type A

54 In stock
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SKU: RTAMB20BD
£14.95
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WCED 3 Way Garage Metal SPD Consumer Unit with 6/16A RCBOs WCED 3 Way Garage Metal SPD Consumer Unit with 6/16A RCBOs

WCED 3 Way Garage Metal SPD Consumer Unit with 6/16A RCBOs

Delivery usually within 1-3 working days*
SKU: WME06/SP/G/616
£49.00
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Live Electrical WI3P20A - Waterproof Isolator Switch 3 Pole 20 A

Live Electrical WI3P20A – Waterproof Isolator Switch 3 Pole 20 A

6 In stock
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SKU: WI3P20A
£7.50
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FuseBox F2015M FuseBox F2015M 15 Way RCBO Consumer Unit 1

FuseBox F2015M 15 Way RCBO Consumer Unit

10 In stock
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SKU: F2015M
£40.90
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WCED WMC150B WCED Miniature Circuit Breaker 6kA Curve B - 50A 1WCED WMC150B WCED Miniature Circuit Breaker 6kA Curve B - 50A 2

WCED Miniature Circuit Breaker 6kA Curve B – 50A

8 In stock
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SKU: WMC150B
£1.53

5-£1.47£0.06£1.53
10-£1.43£0.10£1.53
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WCED WMEV232B WCED A-Type Electric Vehicle 2 Module Enclosure - 32A RCBO B Curve 1WCED WMEV232B WCED A-Type Electric Vehicle 2 Module Enclosure - 32A RCBO B Curve 2

WCED A-Type Electric Vehicle 2 Module Enclosure – 32A RCBO B Curve

Delivery usually within 1-3 working days*
SKU: WMEV232B
£25.99

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3-£24.04£1.95£25.99
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FuseBox F2029MX Fusebox F2029MX 29 Way RCBO Consumer Unit With SPD 1

Fusebox F2029MX 29 Way RCBO Consumer Unit With SPD

1 In stock
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SKU: F2029MX
£159.00
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WCED WFIS100 WCED Fused Main Switch with 80 and 100A Fuses 1

WCED Fused Main Switch with 80 and 100A Fuses

Delivery usually within 1-3 working days*
SKU: WFIS100
£12.50

10-£11.75£0.75£12.50
15-£11.16£1.34£12.50
20-£10.69£1.81£12.50
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WCED Type A Bi-Directional Curve B 10A 30mA RCBO - WRB110B-030

WCED Type A Bi-Directional Curve B 10A 30mA RCBO – WRB110B-030

18 In stock
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SKU: WRB110B-030
£9.99

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WCED WRB120C-030 WCED Type A High Immunity Curve C 20A 30mA RCBO 1WCED WRB120C-030 WCED Type A High Immunity Curve C 20A 30mA RCBO 2

WCED Type A High Immunity Curve C 20A 30mA RCBO

16 In stock
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SKU: WRB120C-030
£9.99

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10-£8.99£1.00£9.99
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WCED WAC2P32 WCED 2 Pole 32A 2NO AC Contactor

WCED 2 Pole 230V 32A NO Normally Open AC Modular Contactor

4 In stock
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SKU: WAC2P32
£5.99

3-£5.84£0.15£5.99
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10-£5.54£0.45£5.99
20-£5.39£0.60£5.99
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WCED WMEV240B WCED A-Type Electric Vehicle 2 Module Enclosure - 40A RCBO B Curve 1WCED WMEV240B WCED A-Type Electric Vehicle 2 Module Enclosure - 40A RCBO B Curve 2

WCED A-Type Electric Vehicle 2 Module Enclosure – 40A RCBO B Curve

Delivery usually within 1-3 working days*
SKU: WMEV240B
£25.99

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3-£24.04£1.95£25.99
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WCED WKB116C WCED 1 Pole 16A C Curve 10 kA MCB 1WCED WKB116C WCED 1 Pole 16A C Curve 10 kA MCB 2

WCED 1 Pole 16A Curve C 10kA MCB

8 In stock
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SKU: WKB116C
£3.35

5-£3.22£0.13£3.35
10-£3.13£0.22£3.35
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FuseBox MT10B321 FuseBox MT10B321 32A Single Pole 10kA B Curve MCB

FuseBox MT10B321 32A Single Pole 10kA B Curve MCB

26 In stock
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SKU: MT10B321
£3.22
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WCED WME10/SP/7RCBO WCED Consumer Unit Kit with SPD and 7 RCBOs 1

WCED Consumer Unit Kit with SPD and 7 RCBOs

Delivery usually within 1-3 working days*
SKU: WME10/SP/7RCBO
£98.63
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WCED WFD132B-030 Bi-Directional Type A 30mA B Curve 32A AFDD

WCED WFD132B-030 Bi-Directional Type A 30mA B Curve 32A AFDD

Delivery usually within 1-3 working days*
SKU: WFD132B-030
£66.15

3-£63.50£2.65£66.15
5-£61.52£4.63£66.15
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Live Electrical MCFS100 Live Electrical 125A Fused Switch With Metal Lid 1Live Electrical MCFS100 Live Electrical 125A Fused Switch With Metal Lid 2

Live Electrical 125A Fused Switch With Metal Lid

5 In stock
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SKU: MCFS100
£25.90

3-£24.35£1.55£25.90
5-£23.57£2.33£25.90
10-£22.27£3.63£25.90
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Hager MTN110 MCB 6kA B-10

Hager MTN110 MCB 6kA B-10

19 In stock
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SKU: MTN110
£2.38
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 Hager VAT21 Terminal Bar 21 Way with Two Support Clips

 Hager VAT21 Terminal Bar 21 Way with Two Support Clips

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SKU: VAT21
£9.05
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Showing 301–320 of 1760 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.

 

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