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Circuit Protection

Showing 521–540 of 2483 results

Garo GP4100M 4 Pole 100A Meter Supply Isolator

3 In Stock
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SKU: GP4100M
£15.17

Garo GK24-4NO – 4 Pole 24A 4NO 230V AC / 220V DC Modular Contactor

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SKU: GK24-4NO
£18.97

Garo | SIAC420IP65 | 20A 4P IP65 | Rotary Isolator Switch

12 In Stock
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SKU: SIAC420IP65
£12.64

FuseBox | APIMG | Push In Membrane Gland | Mixed M20 & M32 | Pack of 12

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SKU: APIMG
£5.99

FuseBox | KWH1M100 | 100A Single Phase MID kWh Meter | DIN Rail Mounted

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SKU: KWH1M100
£30.57

Hager | ADB920R | 1P+N | 6kA | 30mA | B Curve | Type A Bidirectional RCBO | 20A

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SKU: ADB920R
£13.55
FuseBox RTAM100B32BD 100mA Bi-Directional RCBO

FuseBox | RTAM100B32BD | 100mA | Curve B | Type A Bi-Directional Mini RCBO | 32A

14 In Stock
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SKU: RTAM100B32BD
£19.00

Hager | VM04CE | Meter Tail Entry Pack of 10

2 In Stock
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SKU: VM04CE
£3.20
Hager JK11253S Hager JK11253S 125A 3 Pole Mains Switch Incomer Kit 1Hager JK11253S Hager JK11253S 125A 3 Pole Mains Switch Incomer Kit 2

Hager JK11253S 125A 3 Pole Mains Switch Incomer Kit

5 In Stock
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SKU: JK11253S
£68.19 £55.00

Hager NCN132A Single Pole Type C MCB 32A 10kA

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SKU: NCN132A
£9.18
FuseBox RTA102530B 25A 30mA 10kA B Curve Type A RCBOFuseBox | RTA102530B | 10kA | 30mA | Curve B | Type A RCBO | 25A

FuseBox | RTA102530B | 10kA | 30mA | Curve B | Type A RCBO | 25A

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SKU: RTA102530B
£15.99 £14.85

Fusebox IT1003U 100A 3 Pole Din Rail Connector

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SKU: IT1003U
£16.19

WCED | WMIP32CSP | IP65 Metal EV Protection Unit | Type A 32A C Curve RCBO & Type 2 SPD

5 In Stock
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SKU: WMIP32CSP
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Quantity Price
1 £44.78
2+ £43.88
3+ £42.54
5+ £41.42
10+ £40.30
£44.78

Live Electrical 3P+N 20A C Curve 30mA Type A RCBO

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SKU: RTN320C-030N
£45.15

Live Electrical LS-MB18 18 Module LSMC Mounting Bracket

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SKU: LS-MB18
£11.00

WCED | WKC363C | 10kA | Curve C | 3 Pole Bi-Directional MCB | 63A

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SKU: WKC363C
£8.61

WCED | WKC306B | 10kA | Curve B | 3 Pole Bi-Directional MCB | 6A

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SKU: WKC306B
£8.61

Niglon PRCBO10C1-32 1P + Neutral 32A Curve C Bi-Directional 10kA RCBO

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SKU: PRCBO10C1-32
£19.21

Fusebox F3014DT 14 Way 2x100A Dual Tariff Consumer Unit

8 In Stock
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SKU: F3014DT
£45.02
FuseBox SPD Consumer Unit 21 Way RCBO KitF3021MZ/BD/KIT/15 FuseBox F3021MZ Bi Directional SPD Consumer Unit Kit – with 15 RCBOs

FuseBox | F3021MZ | 21 Way SPD Consumer Unit Kit | 15 Bi-Directional RCBOs

In Stock
SKU: F3021MZ/BD/KIT/15
£289.94 £285.67

Showing 521–540 of 2483 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.