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Circuit Protection

Circuit Protection by Brand

Circuit Protection by Brand (1941)

Consumer Units

Consumer Units (477)

Circuit Protection Devices

Circuit Protection Devices (1068)

EV Circuit Protection

EV Circuit Protection (109)

SPD Surge Protection Devices

SPD Surge Protection Devices (124)

Three Phase Distribution Boards

Three Phase Distribution Boards (93)

Switch Fuses - Isolators

Switch Fuses - Isolators (176)

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Switch Gear (266)

Street Lighting Circuit Protection

Street Lighting Circuit Protection (13)

Showing 861–880 of 2370 results

RTN320B-030N Live Electrical 3P+N 20A B Curve 30mA Type A RCBO

Live Electrical 3P+N 20A B Curve 30mA Type A RCBO
4 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RTN320B-030N
£45.15
Live Electrical 3P+N 40A B Curve 30mA Type A RCBO

Live Electrical 3P+N 40A B Curve 30mA Type A RCBO
6 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RTN340B-030N
£45.15
Live Electrical 3P+N 16A C Curve 30mA Type A RCBO

Live Electrical 3P+N 16A C Curve 30mA Type A RCBO
5 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RTN316C-030N
£45.15
Live Electrical 3P+N 20A C Curve 30mA Type A RCBO

Live Electrical 3P+N 20A C Curve 30mA Type A RCBO
9 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RTN320C-030N
£45.15
Live Electrical RNA20C-030 RCBO A Type DP Bi-Directional 20A C Curve 30mA

Live Electrical RNA20C-030 RCBO A Type DP Bi-Directional 20A C Curve 30mA
5 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RNA20C-030
£10.43
Live Electrical CZ280C 2P 80A MCB 10kA Curve C

Live Electrical | CZ280C | 10kA | Curve C | 2 Pole Bi-Directional MCB | 80A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: CZ280C
£12.87
Unicrimp QGT3B Grommet Strip Edge Roll - 5mm x 8mm x 3m (Black)

Unicrimp QGT3B Grommet Strip Edge Roll – 5mm x 8mm x 3m (Black)
2 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: QGT3B
£2.63
WCED WKC320C 10kA 3 Pole MCB Curve C 20A

WCED | WKC320C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 20A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WKC320C
£8.61
WCED WKC363C 10kA 3 Pole MCB Curve C 63A

WCED | WKC363C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 63A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WKC363C
£8.61
Hager KRN199

Hager KRN199 125A Neutral Connecting Block
2 In Stock
More available within:
Usually 3 - 4 Working Days
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SKU: KRN199
£9.74
Hager MZ203 Shunt Trip 230-415V AC / 110-130V DC

Hager MZ203 Shunt Trip 230-415V AC / 110-130V DC
Available to Order
Estimated Lead Time:
Usually 3 - 4 Working Days
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SKU: MZ203
£43.30
Niglon RCBO1-25/30SAX2 25A RCBO – Bi-Directional, Type A, Curve B, 30mA, Compact 18mm, 6kA Rated.

Niglon RCBO1-25/30SAX2 25A Curve B 30mA Bi-Directional A Type RCBO
1 In Stock
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Usually 1 - 3 Working Days
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SKU: RCBO1-25/30SAX2
£12.78
Niglon PMCB10B1-40 40A Single Pole 10kA Curve B MCB

Niglon PMCB10B1-40 40A Single Pole 10kA Curve B MCB
4 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: PMCB10B1-40
£3.42
Live Electrical EV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + Busbar

Live Electrical EV432SP-BP IP65 EV Consumer Unit B32 RCBO + Type 2 SPD + Busbar
17 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: EV432SP-BP
Quantity Discount
Quantity Price
1 - 2 £30.99
3+ £29.44
5+ £28.67
10+ £26.96
20+ £25.41
£30.99
FuseBox F3015MZ Bi Directional SPD Consumer Unit Kit – with 12 RCBO

FuseBox F3015MZ Bi Directional SPD Consumer Unit Kit – with 12 RCBOs
In Stock
SKU: F3015MZ/BD/KIT/12
£243.10 £238.53
Niglon Protego 7 Way Main Switch SPD Consumer Unit

Niglon Protego 7 Way Main Switch SPD Consumer Unit
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: PCU1008M/SPD
£53.80
Live Electrical AMR110C-030 30mA Type A 6kA C Curve 10A Bi-Directional RCBO

Live Electrical | AMR110C-030 | 6kA 30mA | Type A C Curve | Bi-Directional RCBO | 10A
3 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: AMR110C-030
£8.66
Garo DCBO1MB20 20A Curve B 1 Module 2 Pole Type A RCBO

Garo DCBO1MB20 20A Curve B 1 Module 2 Pole Type A Bi-Directional RCBO
5 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: DCBO1MB20
£19.99
Garo 1 Pole 40A NO AC-DC Contactor

Garo GK40-1NO – 1 Pole 40A 1NO 230V AC / 220V DC Modular Contactor
2 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: GK40-1NO
£28.50
Garo 4 Pole 40A NO AC-DC Contactor

Garo GK40-4NO – 4 Pole 40A 4NO 230V AC / 220V DC Modular Contactor
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: GK40-4NO
£45.29

Showing 861–880 of 2370 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.

 






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