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Circuit Protection

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Garo METALBLANK 1 Mod Metal Blank

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SKU: METALBLANK
£0.54

Live Electrical | CB320D | 10kA | Curve D | 3 Pole Bi-Directional MCB | 20A

13 In Stock
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SKU: CB320D
£8.37

FuseBox MT06B631 63A MCB Curve B

47 In Stock
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SKU: MT06B631
£2.90

Fusebox TPN07FBX 7 Way 125A Three Phase Board with SPD

1 In Stock
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SKU: TPN07FBX
£197.30

Live Electrical 19 Way SPD Metal Consumer Unit Kit c/w 15 RCBOs

In Stock
SKU: LSMC22M-SP/15RCBO
£178.36

FuseBox | RTAMC20BD | 30mA | Curve C | Type A Bi-Directional Mini RCBO | 20A

15 In Stock
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SKU: RTAMC20BD
£14.34

Hager KF81A Connection Terminal 1P Prong 1x25mm² – Pack of 1

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SKU: KF81A
£4.67

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

6 In Stock
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SKU: GCS8EV40PME
£115.00

Live Electrical | CB350C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 50A

14 In Stock
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SKU: CB350C
£9.07

Live Electrical MAC4P63 – 4 Pole 63A 4NO 230V AC Modular Contactor

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SKU: MAC4P63
£18.99

WCED WAC2P20 – 2 Pole 20A 2NO 230V AC Modular Contactor

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SKU: WAC2P20
Quantity Discount
Quantity Price
1 - 2 £6.22
3+ £6.06
5+ £5.91
10+ £5.75
20+ £5.60
£6.22

WCED WMCUSP432B 3 Phase SPD with 32A Curve B 4 Pole MCB

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SKU: WMCUSP432B
£51.38

WCED Double Pole Type A 30mA RCBO Curve C – 20A

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SKU: WER20C-030
£15.09

FuseBox MT10C161 16A Single Pole 10kA C Curve MCB

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SKU: MT10C161
£3.22

WCED | WKC120B | 10kA | Curve B | 1 Pole Bi-Directional MCB | 20A

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SKU: WKC120B
£2.96

Niglon RCBO1-10/30SSAX 10A Curve B 30mA A Type RCBO

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SKU: RCBO1-10/30SSAX
£11.12

Garo GCS8EV40CPME IP65 EV Consumer Unit with C40A Type A RCBO, PEN Fault Detection & Surge Protection

7 In Stock
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SKU: GCS8EV40CPME
£115.00

Live Electrical | LHFS125 | 3 Phase Metal Switch Fuse Box | 3 x 100A Fuses

13 In Stock
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SKU: LHFS125
£65.40

Hager MTN140 MCB 6kA B-40

5 In Stock
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SKU: MTN140
£2.45

FuseBox MT06B101 10A MCB Curve B

37 In Stock
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SKU: MT06B101
£1.95

Showing 341–360 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.

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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.