VAT:

Circuit Protection

Showing 181–200 of 2375 results

Live Electrical | TPN08-125S | 125A TP&N Distribution Board | 4P Main Switch | Type 2 SPD | 8 Way

3 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: TPN08-125S
£147.30

Live Electrical | CB340C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 40A

4 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: CB340C
£8.37

Live Electrical PEN2100D 100A 2 Pole Mains Supply Isolator and Enclosure 

10 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: PEN2100D
£9.02

Live Electrical | AFD32B | AFDD with Type A RCBO | 6kA 30mA | B32

6 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: AFD32B
£66.14
FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOsFuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs 2

FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs

In Stock
SKU: F3011MZ/8RCBO
£143.80 £141.18

Live Electrical PEN4100 100A 4 Pole Mains Supply Isolator and Enclosure

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: PEN4100
£12.63

Live Electrical MCS125A Metal 125A Changeover Switch

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MCS125A
£34.50

FuseBox F3015MZ 15 Way RCBO Consumer Unit With SPD

6 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: F3015MZ
Quantity Discount
Quantity Price
1 - 7 £63.99
8+ £60.47
£63.99

Live Electrical MAC2P20 – 2 Pole 20A 2NO 230V AC Modular Contactor

Available to Order
Estimated Lead Time:
Usually 2 - 3 Working Days
Read More
SKU: MAC2P20
£6.24

Live Electrical | TPN06-125S | 125A TP&N Distribution Board | 4P Main Switch | Type 2 SPD | 6 Way

2 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: TPN06-125S
£135.16

WCED 6 Way Metal Enclosure

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WME6
Quantity Discount
Quantity Price
1 - 4 £19.52
5+ £19.03
10+ £18.54
20+ £18.06
£19.52

WCED Double Pole Type A 30mA RCBO Curve B – 16A

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WER16B-030
£15.09

WCED WAC2P20NC/24 – 2 Pole 20A 2NC 24V AC Modular Contactor

5 In Stock
More available within:
Usually 1 - 2 Working Days
Read More
SKU: WAC2P20NC/24
Quantity Discount
Quantity Price
1 - 2 £14.16
3+ £13.81
5+ £13.45
10+ £13.10
20+ £12.74
£14.16

Live Electrical | CB363C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 63A

6 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: CB363C
£9.07
Automatic Fire Suppression System - 195mm Long TubeEnvirograf EBU1 EnviroBurst Automatic Fire Suppression System - 195mm Long Tube 2

EnviroBurst | Automatic Fire Suppression System | 195mm Long Tube

19 In Stock
This item cannot be back-ordered
SKU: EBU1
£23.97 £20.99

Live Electrical | CB140B | 10kA | Curve B | 1 Pole Bi-Directional MCB | 40A

17 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: CB140B
£2.95

WCED WAC4P100 – 4 Pole 100A 4NO 230V AC Modular Contactor

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WAC4P100
Quantity Discount
Quantity Price
1 - 2 £32.92
3+ £32.10
5+ £31.27
10+ £30.45
20+ £29.63
£32.92

DIN Rail 35mm x 7.5mm – 1 meter

27 In Stock
More available within:
Usually 2 - 3 Working Days
Read More
SKU: STDL35
£2.95

FuseBox F3007MZ 7 Way RCBO Consumer Unit With SPD

22 In Stock
More available within:
Usually 2 - 4 Working Days
Read More
SKU: F3007MZ
Quantity Discount
Quantity Price
1 - 5 £54.34
6+ £52.44
£54.34

WCED | Bi-Directional | Type B HP RCD for Heat Pumps | 40A | 30mA

Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
Read More
SKU: WHP240B-030
Quantity Discount
Quantity Price
1 £99.19
2+ £96.21
3+ £94.23
£99.19

Showing 181–200 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.