VAT:

Circuit Protection

Showing 261–280 of 2375 results

PME / PEN Fault Detection Unit 6 Mod c/w C40 RCBO /4P63A contactor & PME Relays

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WMEPME06/C40
Quantity Discount
Quantity Price
1 £85.13
2+ £82.58
3+ £80.87
£85.13

FuseBox MT10C402 40A Double Pole 10kA C Curve MCB

9 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: MT10C402
£6.68

Live Electrical 10kA RCBO 20A Curve C Type A 30mA 1P+N

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: RA120C-030
£10.99
Live Electrical MMGU32B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 32A B Curve Type ALive Electrical MMGU32B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 32A B Curve Type A 2

Live Electrical MMGU32B-SP EV Consumer Unit with RCBO SPD & Busbar – 2P 32A B Curve Type A

10 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: MMGU32B-SP
Quantity Discount
Quantity Price
1 - 2 £30.99
3+ £29.44
5+ £28.67
10+ £26.96
20+ £25.41
£30.99

Live Electrical WI3P20A – Waterproof Isolator Switch 3 Pole 20 A

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: WI3P20A
£7.50

Live Electrical RI440 4 Pole 40A IP65 Rotary Isolator Switch

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: RI440
£15.90

 Hager VAT21 Terminal Bar 21 Way with Two Support Clips

Available to Order
Estimated Lead Time:
Usually 2 - 4 Working Days
Read More
SKU: VAT21
£11.14

Hager | ADB440G | 1P+N | 6kA | 30mA | B Curve | Type A RCBO | 40A

5 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: ADB440G
£13.55

Fusebox ABTR Bell Transformer

1 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: ABTR
£7.24
Automatic Fire Suppression System - 150mm Long TubeEnvirograf EBU0 EnviroBurst Automatic Fire Suppression System - 150mm Long Tube 2

EnviroBurst | Automatic Fire Suppression System | 150mm Tube

9 In Stock
This item cannot be back-ordered
SKU: EBU0
£23.49 £21.56

Fire Retardant Consumer Unit / Meter Board 12″ x 24″ ( 304 x 608mm )

7 In Stock
More available within:
Usually 1 - 3 Working Days
Read More
SKU: MB1224
£18.90

Fusebox SF0100RA 100A Fused Switch With 100mA Type A RCD

4 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: SF0100RA
£58.45

WCED WME44100 4 Pole 100A Metal Meter Isolator

7 In Stock
More available within:
Usually 1 - 2 Working Days
Read More
SKU: WME44100
£15.90

3 Phase PME / PEN Fault Detection Unit for 2 x 3 Phase Car Chargers

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WMTP28-R40CSP
£242.55

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

Out of Stock
This item cannot be back-ordered
SKU: WME06/SP/G/616
£45.40

Hager MTN132 MCB 6kA B-32

2 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: MTN132
£2.45

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

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WMEV240B
£25.99

Live Electrical SA140 1 Pole 20kA/40kA Type 2 Surge Protective Device

5 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: SA140
£9.55

PME / PEN Fault Detection Unit with Load Management 10 Mod c/w C40 RCBO Relays and SPD

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WMEPME10/LB
Quantity Discount
Quantity Price
1 £122.62
2+ £118.94
3+ £116.49
£122.62

FuseBox | RTA101030C | 10kA | 30mA | Curve C | Type A RCBO | 10A

20 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: RTA101030C
£15.99

Showing 261–280 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.

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.