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Circuit Protection

Showing 881–900 of 2380 results

Hager | ADB925R | 1P+N | 6kA | 30mA | B Curve | Type A Bidirectional RCBO | 25A

1 In Stock
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SKU: ADB925R
£13.55
Live Electrical CN106C 2P Bi-Directional C Curve 6A MCBLive Electrical | CN106C | 2P Bi-Directional MCB | C Curve | 6A | For SRN Consumer Units

Live Electrical | CN106C | 2P Bi-Directional MCB | C Curve | 6A | For SRN Consumer Units

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SKU: CN106C
£5.99
Live Electrical CN110C 2P Bi-Directional C Curve 10A MCBLive Electrical | CN110C | 2P Bi-Directional MCB | C Curve | 10A | For SRN Consumer Units

Live Electrical | CN110C | 2P Bi-Directional MCB | C Curve | 10A | For SRN Consumer Units

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SKU: CN110C
£5.99
Live Electrical CN116C 2P Bi-Directional C Curve 16A MCBLive Electrical | CN116C | 2P Bi-Directional MCB | C Curve | 16A | For SRN Consumer Units

Live Electrical | CN116C | 2P Bi-Directional MCB | C Curve | 16A | For SRN Consumer Units

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SKU: CN116C
£5.99
Live Electrical CN120C 2P Bi-Directional C Curve 20A MCBLive Electrical | CN120C | 2P Bi-Directional MCB | C Curve | 20A | For SRN Consumer Units

Live Electrical | CN120C | 2P Bi-Directional MCB | C Curve | 20A | For SRN Consumer Units

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SKU: CN120C
£5.99

FuseBox | P65GRAZ | IP65 ABS Garage Consumer Unit with Type 2 SPD Grey | 63A RCD 6A/16A MCBs

8 In Stock
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SKU: P65GRAZ
£60.90
FuseBox INC202NC 20A 2 Pole Normally Closed Contactor 230VFuseBox | INC202NC | 2 Pole | Normally Closed Contactor | 230V | 20A

FuseBox | INC202NC | 2 Pole | Normally Closed Contactor | 230V | 20A

3 In Stock
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SKU: INC202NC
£8.95
FuseBox INC254NC 25A 4 Pole Normally Closed Contactor 230VFuseBox | INC254NC | 4 Pole | Normally Closed Contactor | 230V | 25A

FuseBox | INC254NC | 4 Pole | Normally Closed Contactor | 230V | 25A

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SKU: INC254NC
£14.25
FuseBox INC402NC 40A 2 Pole Normally Closed Contactor 230VFuseBox | INC402NC | 2 Pole | Normally Closed Contactor | 230V | 40A

FuseBox | INC402NC | 2 Pole | Normally Closed Contactor | 230V | 40A

5 In Stock
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SKU: INC402NC
£14.25
FuseBox INC404NC 40A 4 Pole Normally Closed Contactor 230VFuseBox | INC404NC | 4 Pole | Normally Closed Contactor | 230V | 40A

FuseBox | INC404NC | 4 Pole | Normally Closed Contactor | 230V | 40A

4 In Stock
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SKU: INC404NC
£17.85
FuseBox INC632NC 63A 2 Pole Normally Closed Contactor 230VFuseBox | INC632NC | 2 Pole | Normally Closed Contactor | 230V | 63A

FuseBox | INC632NC | 2 Pole | Normally Closed Contactor | 230V | 63A

4 In Stock
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SKU: INC632NC
£17.85
FuseBox INC634NC 63A 4 Pole Normally Closed Contactor 230VFuseBox | INC634NC | 4 Pole | Normally Closed Contactor | 230V | 63A

FuseBox | INC634NC | 4 Pole | Normally Closed Contactor | 230V | 63A

3 In Stock
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SKU: INC634NC
£21.70
Live Electrical AMR125B-030 25A Bi-Directional RCBO

Live Electrical | AMR125B-030 | 6kA 30mA | Type A B Curve | Bi-Directional RCBO | 25A

58 In Stock
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SKU: AMR125B-030
£8.22
Live Electrical LSMC4M-SP 1 Way SPD Metal Consumer Unit

Live Electrical | LSMC4M-SP | 1 Way SPD Metal Consumer Unit

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SKU: LSMC4M-SP
£38.65
FuseBox EV32ABD EV Consumer Unit

FuseBox | EV32ABD | EV Consumer Unit | 32A Bidirectional RCBO & 100A Main Switch

2 In Stock
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SKU: EV32ABD
£42.99
FuseBox | EV32AX | EV Consumer Unit | 32A Type A RCBO, Main Switch & SPD

FuseBox | EV32AX | EV Consumer Unit | 32A Type A RCBO, Main Switch & SPD

9 In Stock
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SKU: EV32AX
£57.99
Live Electrical | SC440CABLE | 6mm 3 Phase SPD Cable Link Set

Live Electrical | SC440CABLE | 6mm 3 Phase SPD Cable Link Set

35 In Stock
This item cannot be back-ordered
SKU: SC440CABLE
£6.10
WCED EV Consumer Unit WMRC40BSPEV Consumer Unit with A Type DP B40 RCBO and SPD 2

WCED | WMRC40BSP | EV Consumer Unit | Type A DP 40A B Curve RCBO & SPD

Available to Order
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SKU: WMRC40BSP
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1 - 2 £29.90
3+ £29.30
5+ £28.70
10+ £27.51
£29.90
WCED EV Consumer Unit WMRC40CSPEV Consumer Unit with A Type DP C40 RCBO and SPD 2

WCED | WMRC40CSP | EV Consumer Unit | Type A DP 40A C Curve RCBO & SPD

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Usually 1 - 2 Working Days
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SKU: WMRC40CSP
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1 - 2 £29.90
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5+ £28.70
10+ £27.51
£29.90

WCED WEC2100 2 Way 100A Enclosure Meter Isolation Switch

Available to Order
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Usually 1 - 2 Working Days
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SKU: WEC2100
£8.84

Showing 881–900 of 2380 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.