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Circuit Protection

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SPD Surge Protection Devices (107)

WMIP5/G

5 Way IP65 Metal Enclosure

5 In stock
More available within 1-3 working days*
SKU: WMIP5/G
£24.40

5-£23.79£0.61£24.40
10-£23.18£1.22£24.40
20-£22.57£1.83£24.40
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G-ProKit COMPAC-MET-100A-3PHASE G-ProBox 100A Three-Phase Compact Check Meter 1G-ProKit COMPAC-MET-100A-3PHASE G-ProBox 100A Three-Phase Compact Check Meter 2

G-ProBox 100A Three-Phase Compact Check Meter

Delivery usually within 1-3 working days*
SKU: COMPAC-MET-100A-3PHASE
£80.93

2-£79.31£1.62£80.93
3-£77.69£3.24£80.93
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Hager ADB450G Hager ADB450G 30mA Curve B 6kA 50A Type A 1M 1P RCBO

Hager ADB450G 30mA Curve B 6kA 50A Type A 1M 1P RCBO

10 In stock
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SKU: ADB450G
£12.99
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Live Electrical AGU4-SR/G IP65 Metal SPD Garage/EV Consumer Unit with 40A RCBO – Grey

Live Electrical AGU4-SR/G IP65 Metal SPD Garage/EV Consumer Unit with 40A RCBO – Grey

10 In stock
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SKU: AGU4-SR/G
£52.92

3-£51.60£1.32£52.92
5-£50.27£2.65£52.92
10-£48.95£3.97£52.92
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FuseBox A65GRAGY Metal IP65 Garage Consumer Unit - Grey Metal IP65 Garage Consumer Unit with 63A 30mA RCD and 6A & 16A MCBs

FuseBox A65GRAGY Metal IP65 Garage Consumer Unit – Grey

3 In stock
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SKU: A65GRAGY
£60.00

3-£59.10£0.90£60.00
5-£58.35£1.65£60.00
10-£57.00£3.00£60.00
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FuseBox AEV32AXBDGY IP65 32A Bi-Directional RCBO & SPD Consumer Unit FuseBox AEV32AXBDGY IP65 32A Bi-Directional RCBO & SPD Consumer Unit

FuseBox AEV32AXBDGY IP65 32A Bi-Directional RCBO & SPD Consumer Unit

17 In stock
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SKU: AEV32AXBDGY
£86.53

3-£85.23£1.30£86.53
5-£84.15£2.38£86.53
10-£82.20£4.33£86.53
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Live Electrical 3 Way SPD Metal Garage Consumer Unit Kit with 2 RCBOs

Live Electrical 3 Way SPD Metal Garage Consumer Unit Kit with 2 RCBOs

Delivery usually within 1-3 working days*
SKU: LSMC6M-SP/2RCBO
£54.00
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Live Electrical 3P+N 32A C Curve 30mA Type A RCBO

Live Electrical 3P+N 32A C Curve 30mA Type A RCBO

4 In stock
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SKU: RTN332C-030N
£79.95
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Live Electrical RNA16C-030 RCBO A Type DP Bi-Directional 16A C Curve 30mA

Live Electrical RNA16C-030 RCBO A Type DP Bi-Directional 16A C Curve 30mA

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SKU: RNA16C-030
£16.06
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Live Electrical CB240C 2 Pole MCB 40A C Curve

Live Electrical CB240C 2 Pole 10kA MCB 40A C Curve

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SKU: CB240C
£5.89
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WCED WME08/HP40C Heat Pump Consumer Units with 40A Type B RCD C40 MCB Type 2 SPD

WCED WME08/HP40C Heat Pump Consumer Unit with 40A Type B RCD C40 MCB Type 2 SPD

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SKU: WME08/HP40C
£103.50
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Niglon RCBO1-16/30SSAX 16A Curve B 30mA A Type RCBO

Niglon RCBO1-16/30SSAX 16A Curve B 30mA A Type RCBO

52 In stock
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SKU: RCBO1-16/30SSAX
£13.20
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Gewiss GW70443P 40A Rotary Isolator Switch with red emergency knob, IP66/IP67/IP69-rated enclosure, and lockable 4-pole safety design for industrial and outdoor use. Gewiss GW70443P 40A Rotary Isolator Switch with red emergency knob, IP66/IP67/IP69-rated enclosure, and lockable 4-pole safety design for industrial and outdoor use.

Gewiss GW70443P 40A 4-Pole IP66/IP67/IP69 Rotary Isolator Switch

12 In stock
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SKU: GW70443P
£20.87
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Garo GCS8EV40PME IP65 EV Consumer Unit with B40A Type A RCBO, PEN Fault Detection & Surge Protection Garo GCS8EV40PME IP65 EV Consumer Unit with B40A Type A RCBO, PEN Fault Detection & Surge Protection

Garo GCS8EV40PME IP65 EV Consumer Unit with B40A Type A RCBO, PEN Fault Detection & Surge Protection

1 In stock
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SKU: GCS8EV40PME
£115.00
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Hager NBN306A Triple MCB

Hager NBN306A 3 Pole MCB Type B 6A 10kA

2 In stock
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SKU: NBN306A
£35.99
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Hager 38mm Open Grommet – Single

Hager 38mm Open Grommet – Single

51 In stock
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SKU: VMGROM
£0.99
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Live Electrical RI425 25A Weatherproof Rotary Isolator Switch 4 Pole 1

Live Electrical RI425 4 Pole 25A Rotary Isolator Switch

7 In stock
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SKU: RI425
£10.80
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Hager JK102SPD Hager JK102SPD 125A Surge Protection Kit Type 2 1

Hager JK102SPD 125A Surge Protection Kit Type 2

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SKU: JK102SPD
£247.21
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Hager VML914CUSPDRK Hager VML914CUSPDRK SPD Dual RCD 14 Way Consumer Unit 1

Hager VML914CUSPDRK SPD Dual RCD 14 Way Consumer Unit

Delivery usually within 1-3 working days*
SKU: VML914CUSPDRK
£146.71
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Hager MTN120 MCB 6kA B-20

Hager MTN120 MCB 6kA B-20

1 In stock
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SKU: MTN120
£2.38
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More products

Showing 681–700 of 1806 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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