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Circuit Protection

Showing 101–120 of 1744 results

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SPD Surge Protection Devices

SPD Surge Protection Devices (109)

FuseBox EV40AX Fusebox EV40AX EV Charger Supply Unit 40A With SPD 1

Fusebox EV40AX EV Charger Supply Unit 40A With SPD

Delivery usually within 1-3 working days*
SKU: EV40AX
£59.99
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WCED WSPD440 WCED Type 2 20kA/40kA 3P+N Surge Arrestor 1WCED WSPD440 WCED Type 2 20kA/40kA 3P+N Surge Arrestor 2

WCED Type 2 20kA/40kA 3P+N Surge Arrestor

Delivery usually within 1-3 working days*
SKU: WSPD440
£25.50

3-£24.23£1.28£25.50
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WCED WME3L/32 WCED Mini CU 3 Way Empty Enclosure 1WCED WME3L/32 WCED Mini CU 3 Way Empty Enclosure 2

WCED Mini CU 3 Way Empty Enclosure

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SKU: WME3L/32
£8.99

5-£8.77£0.22£8.99
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hager-vme02spd-surge-protection-kit

Hager VME02SPD Type 2 Surge Protection Kit

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SKU: VME02SPD
£34.86
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Live Electrical WS18-125 Live Electrical Single Pole 125A Rail Mount Fuse Holder Without Fuse 1Live Electrical WS18-125 Live Electrical Single Pole 125A Rail Mount Fuse Holder Without Fuse 2

Live Electrical Single Pole 125A Rail Mount Fuse Holder Without Fuse

1 In stock
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SKU: WS18-125
£8.90
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WCED Type A Bi-Directional Curve B 40A 30mA RCBO – WRB140B-030

WCED Type A Bi-Directional Curve B 40A 30mA RCBO – WRB140B-030

17 In stock
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SKU: WRB140B-030
£9.99

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FuseBox RTAMB25 FuseBox RTAMB25 25A Mini Type A RCBO 1FuseBox RTAMB25 FuseBox RTAMB25 25A Mini Type A RCBO 3

FuseBox RTAMB25 25A Mini Type A RCBO

24 In stock
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SKU: RTAMB25
£13.50
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Live Electrical CB332B Live Electrical CB332B 3 Pole 32A B Curve 10kA MCB 1Live Electrical CB332B Live Electrical CB332B 3 Pole 32A B Curve 10kA MCB 2

Live Electrical CB332B 3 Pole 32A B Curve 10kA MCB

14 In stock
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SKU: CB332B
£9.99
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Live Electrical LEVB240 2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO 1Live Electrical LEVB240 2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO 2

2 Way Metal Enclosure c/w 40A Type A Double Pole RCBO

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SKU: LEVB240
£29.50 £22.50
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FuseBox MT06B161 FuseBox MT06B161 16A MCB Curve B 1

FuseBox MT06B161 16A MCB Curve B

44 In stock
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SKU: MT06B161
£1.95
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WCED WMC116B WCED Miniature Circuit Breaker 6kA Curve B - 16A 1WCED WMC116B WCED Miniature Circuit Breaker 6kA Curve B - 16A 2

WCED Miniature Circuit Breaker 6kA Curve B – 16A

19 In stock
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SKU: WMC116B
£1.53

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Live Electrical CB110C Live Electrical CB110C 10A Curve C 10kA MCB 1Live Electrical CB110C Live Electrical CB110C 10A Curve C 10kA MCB 2

Live Electrical CB110C 10A Curve C 10kA MCB

18 In stock
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SKU: CB110C
£2.95
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Live Electrical AMR110B-030 30mA Type A 10A 6kA B Curve Bi-Directional RCBO Live Electrical AMR110B-030 30mA Type A 10A 6kA B Curve Bi-Directional RCBO

Live Electrical AMR110B-030 30mA Type A 10A 6kA B Curve Bi-Directional RCBO

209 In stock
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SKU: AMR110B-030
£9.88

10-£8.89£0.99£9.88
20-£8.40£1.48£9.88
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FuseBox RTA065030B FuseBox RTA065030B 50A Type A RCBO 30mA 1

FuseBox RTA065030B 50A Type A RCBO 30mA

53 In stock
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SKU: RTA065030B
£9.99
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Live Electrical AMR120B-030 20A RCBO with 30mA Type A earth leakage protection and bi-directional function for PV systems Live Electrical AMR120B-030 30mA Type A 20A 6kA B Curve Bi-Directional RCBO

Live Electrical AMR120B-030 30mA Type A 20A 6kA B Curve Bi-Directional RCBO

220 In stock
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SKU: AMR120B-030
£9.88

10-£8.89£0.99£9.88
20-£8.40£1.48£9.88
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WCED WMC140B WCED Miniature Circuit Breaker 6kA Curve B - 40A 1WCED WMC140B WCED Miniature Circuit Breaker 6kA Curve B - 40A 2

WCED Miniature Circuit Breaker 6kA Curve B – 40A

8 In stock
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SKU: WMC140B
£1.53

5-£1.47£0.06£1.53
10-£1.43£0.10£1.53
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WCED WMCUSP440C 3 Phase SPD with 40A Curve C 4 Pole MCB

WCED WMCUSP440C 3 Phase SPD with 40A Curve C 4 Pole MCB

Delivery usually within 1-3 working days*
SKU: WMCUSP440C
£59.90

3-£56.91£3.00£59.90
5-£55.41£4.49£59.90
10-£53.91£5.99£59.90
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Live Electrical CB316C Live Electrical CB316C 3 Pole 16A C Curve 10kA MCB 1Live Electrical CB316C Live Electrical CB316C 3 Pole 16A C Curve 10kA MCB 2

Live Electrical CB316C 3 Pole 16A C Curve 10kA MCB

7 In stock
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SKU: CB316C
£9.99
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Live Electrical MAC2P32 Live Electrical MAC2P32 32A Modular AC Contactor 2 Pole NO 1Live Electrical MAC2P32 Live Electrical MAC2P32 32A Modular AC Contactor 2 Pole NO 2

Live Electrical MAC2P32 32A Modular AC Contactor 2 Pole NO

15 In stock
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SKU: MAC2P32
£9.79
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Live Electrical TBL100 MCB Type Terminal Block 100A

MCB Type Terminal Block 100A

7 In stock
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SKU: TBL100
£2.50
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Showing 101–120 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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