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Circuit Protection

Showing 41–60 of 1744 results

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Live Electrical RI420 20A Weatherproof Rotary Isolator Switch 4 Pole 1

Live Electrical RI420 20A 4 Pole Weatherproof Rotary Isolator

9 In stock
More available within 1-3 working days*
SKU: RI420
£9.90
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Live Electrical CB106B Live Electrical CB106B 6A Curve B 10kA MCB 1Live Electrical CB106B Live Electrical CB106B 6A Curve B 10kA MCB 2

Live Electrical CB106B 6A Curve B 10kA MCB

6 In stock
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SKU: CB106B
£2.95
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WCED WPGU04/632 Plastic IP65 Garage Consumer Unit - 63A Type A RCD 6A/32A B MCBs IP65 Plastic Garage Consumer Unit – 63A Type A RCD with 6A & 32A MCBs – WCED

WCED WPGU04/632 Plastic IP65 Garage Consumer Unit – 63A Type A RCD 6A/32A B MCBs

Delivery usually within 1-3 working days*
SKU: WPGU04/632
£23.66

3-£23.07£0.59£23.66
5-£22.48£1.18£23.66
10-£21.89£1.77£23.66
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FuseBox RTAMC16 FuseBox RTAMC16 16A Mini Type A RCBO 1

FuseBox RTAMC16 16A Mini Type A RCBO

63 In stock
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SKU: RTAMC16
£13.50
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WCED WEC44100 WCED WEC44100 4 Pole 100A Meter Supply Isolator 3

WCED WEC44100 4 Pole 100A Meter Supply Isolator

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SKU: WEC44100
£16.88

3-£16.04£0.84£16.88
5-£15.61£1.27£16.88
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WCED MCBBLANK MCBBLANK - Plastic Blank for WCED Consumer Units

MCBBLANK – Plastic Blank for WCED Consumer Units

228 In stock
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SKU: MCBBLANK
£0.99
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WCED WME4L/32 WCED Mini CU 4 Way Empty Enclosure 1WCED WME4L/32 WCED Mini CU 4 Way Empty Enclosure 2

WCED Mini CU 4 Way Empty Enclosure

39 In stock
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SKU: WME4L/32
£10.47

5-£10.21£0.26£10.47
10-£9.95£0.52£10.47
20-£9.68£0.79£10.47
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WCED Type A Bi-Directional Curve B 16A 30mA RCBO - WRB116B-030

WCED Type A Bi-Directional Curve B 16A 30mA RCBO – WRB116B-030

14 In stock
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SKU: WRB116B-030
£9.99

5-£9.49£0.50£9.99
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FuseBox MT06B061 FuseBox MT06B061 6A MCB Curve B 1

FuseBox MT06B061 6A MCB Curve B

26 In stock
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SKU: MT06B061
£1.95
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Live Electrical RA110C-030 Live 30mA 10A RCBO 10kA Curve C Type A 1Live Electrical RA110C-030 Live 30mA 10A RCBO 10kA Curve C Type A 2

Live 30mA 10A RCBO 10kA Curve C Type A

46 In stock
This item cannot be back-ordered
SKU: RA110C-030
£10.99
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Hager JK01B Hager JK01B Single Pole Busbar Blank

Hager JK01B Single Pole Busbar Blank

19 In stock
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SKU: JK01B
£1.47
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Hager ADA316G Hager ADA316G RCBO 16 Amp B Type 30mA 6kA

Hager ADA316G RCBO 16 Amp B Type 30mA 6kA

28 In stock
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SKU: ADA316G
£12.99
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Live Electrical RA106C-030 Live 30mA 6A RCBO 10kA Curve C Type A 1Live Electrical RA106C-030 Live 30mA 6A RCBO 10kA Curve C Type A 2

Live 30mA 6A RCBO 10kA Curve C Type A

12 In stock
This item cannot be back-ordered
SKU: RA106C-030
£10.99
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Live Electrical RA110B-030 Live Electrical 30mA 10A RCBO 10kA Curve B Type A

Live Electrical 30mA 10A RCBO 10kA Curve B Type A

89 In stock
This item cannot be back-ordered
SKU: RA110B-030
£10.99
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WCED WEC2100 WCED WEC2100 2 Way 100A Enclosure Meter Isolation Switch 2

WCED WEC2100 2 Way 100A Enclosure Meter Isolation Switch

48 In stock
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SKU: WEC2100
£9.84

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5-£9.10£0.74£9.84
10-£8.86£0.98£9.84
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Live Electrical CB332C Live Electrical CB332C 3 Pole 32A C Curve 10kA MCB 1Live Electrical CB332C Live Electrical CB332C 3 Pole 32A C Curve 10kA MCB 2

Live Electrical CB332C 3 Pole 32A C Curve 10kA MCB

15 In stock
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SKU: CB332C
£9.99
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FuseBox RTAMC32 FuseBox RTAMC32 32A Mini Type A RCBO 1

FuseBox RTAMC32 32A Mini Type A RCBO

74 In stock
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SKU: RTAMC32
£13.50
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WCED WRB116C-030 WCED Type A High Immunity Curve C 16A 30mA RCBO 1WCED WRB116C-030 WCED Type A High Immunity Curve C 16A 30mA RCBO 2

WCED Type A High Immunity Curve C 16A 30mA RCBO

7 In stock
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SKU: WRB116C-030
£9.99

5-£9.49£0.50£9.99
10-£8.99£1.00£9.99
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Live Electrical EMCU2-A Live Electrical 2 Way Empty DIN Rail Metal Enclosure With Lid EMCU2-A

Live Electrical EMCU3-A 3 Way Empty DIN Rail Metal Enclosure With Lid

Delivery usually within 1-3 working days*
SKU: EMCU3-A
£9.45
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IP65 EV Consumer Unit with Type A DP C32 RCBO and SPD IP65 EV Consumer Unit with Type A DP C32 RCBO and SPD

IP65 EV Consumer Unit with Type A DP C32 RCBO and SPD

Delivery usually within 1-3 working days*
SKU: WPRC32CSP
£36.38

3-£35.65£0.73£36.38
5-£35.02£1.36£36.38
10-£33.65£2.73£36.38
20-£31.83£4.55£36.38
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Showing 41–60 of 1744 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.

 

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