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Circuit Protection

Circuit Protection by Brand

Circuit Protection by Brand (1941)

Consumer Units

Consumer Units (477)

Circuit Protection Devices

Circuit Protection Devices (1068)

EV Circuit Protection

EV Circuit Protection (109)

SPD Surge Protection Devices

SPD Surge Protection Devices (124)

Three Phase Distribution Boards

Three Phase Distribution Boards (93)

Switch Fuses - Isolators

Switch Fuses - Isolators (176)

Switch Gear

Switch Gear (266)

Street Lighting Circuit Protection

Street Lighting Circuit Protection (13)

Showing 181–200 of 2370 results

Live Electrical AFDD - 32A

Live Electrical | AFD32B | AFDD with Type A RCBO | 6kA 30mA | B32
6 In Stock
More available within:
Usually 1 - 2 Working Days
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SKU: AFD32B
£66.14
WCED Whitecliffe WSPDTE-4 4 Pole 4 Module Type 1+2 SPD Surge Protection Device

WCED Whitecliffe WSPDTE-4 4 Pole 4 Module Type 1+2 SPD Surge Protection Device
8 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: WSPDTE-4
£78.59
WCED WMC163B WCED Miniature Circuit Breaker 6kA Curve B - 63A 1

WCED | WMC163B | 6kA | Curve B | 1 Pole Bi-Directional MCB | 63A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WMC163B
£1.37
Live Electrical PEN4100 100A 4 Pole Mains Supply Isolator and Enclosure

Live Electrical PEN4100 100A 4 Pole Mains Supply Isolator and Enclosure
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: PEN4100
£12.63
WCED Consumer Unit Kit with SPD and 9 RCBOs

WCED Consumer Unit Kit with SPD and 9 RCBOs
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WME14/SP/9RCBO
£116.62
WARB5100C/PME40RSP 3 Phase PME Fault Detection Unit

WARB5100C/PME40RSP 3 Phase PME Fault Detection Unit
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WARB5100C/PME40RSP
£99.04
6A Double Pole Single Module RCBO

Live Electrical | RNC106B-030N | 6kA 30mA | Type A B Curve | Bi-Directional Double Pole RCBO | 6A
307 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: RNC106B-030N
£9.75
Live Electrical MCS125A Live Electrical Metal 125A Changeover Switch Box

Live Electrical MCS125A Metal 125A Changeover Switch
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: MCS125A
£34.50
Live Electrical MAC2P20 Live Electrical MAC2P20 20A Modular AC Contactor 2 Pole NO 1

Live Electrical MAC2P20 – 2 Pole 20A 2NO 230V AC Modular Contactor
Available to Order
Estimated Lead Time:
Usually 1 - 2 Working Days
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SKU: MAC2P20
£6.24
Live Electrical TPN06-125S Live Electrical 125 Amp 6 Way TPN Distribution Board with SPD 1

Live Electrical TPN06-125S 125 Amp 6 Way TPN Distribution Board with SPD
3 In Stock
More available within:
Usually 1 - 2 Working Days
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SKU: TPN06-125S
£135.16
WCED WME6 WCED 6 Way Metal Enclosure 1

WCED 6 Way Metal Enclosure
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WME6
Quantity Discount
Quantity Price
1 - 4 £19.52
5+ £19.03
10+ £18.54
20+ £18.06
£19.52
WCED Double Pole Type A 30mA RCBO Curve B - 16A

WCED Double Pole Type A 30mA RCBO Curve B – 16A
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: WER16B-030
£15.09
WCED 2 Pole 20A 24V NC Normally Closed AC Modular Contactor

WCED WAC2P20NC/24 – 2 Pole 20A 2NC 24V AC Modular Contactor
5 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: WAC2P20NC/24
Quantity Discount
Quantity Price
1 - 2 £14.16
3+ £13.81
5+ £13.45
10+ £13.10
20+ £12.74
£14.16
Live Electrical CB140B Live Electrical CB140B 40A Curve B 10kA MCB 1

Live Electrical | CB140B | 10kA | Curve B | 1 Pole Bi-Directional MCB | 40A
5 In Stock
More available within:
Usually 1 - 2 Working Days
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SKU: CB140B
£2.95
Envirograf EBU1 EnviroBurst Automatic Fire Suppression System - 195mm Long Tube 1

EnviroBurst Automatic Fire Suppression System – 195mm Long Tube
19 In Stock
More available within:
Usually 1 - 3 Working Days
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SKU: EBU1
£23.97
WCED WAC4P100 WCED 4 Pole 100A 4NO AC Contactor 1

WCED WAC4P100 – 4 Pole 100A 4NO 230V AC Modular Contactor
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
Read More
SKU: WAC4P100
Quantity Discount
Quantity Price
1 - 2 £32.92
3+ £32.10
5+ £31.27
10+ £30.45
20+ £29.63
£32.92
FuseBox F3015MZ SPD Consumer UnitAngled view of the FuseBox F3015MZ consumer unit with front cover removed, showing internal layout

FuseBox F3015MZ 15 Way RCBO Consumer Unit With SPD
21 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: F3015MZ
Quantity Discount
Quantity Price
1 - 7 £63.99
8+ £60.47
£63.99
Niglon VMT2 Phase Failure Relay

Niglon VMT2 Phase Failure Relay
Available to Order
Estimated Lead Time:
Usually 1 - 3 Working Days
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SKU: VMT2
£11.79
FuseBox INC202 20A 230V 2 Pole NO Normally Open AC Modular Contactor

FuseBox INC202 – 2 Pole 20A 2NO 230V AC Modular Contactor
2 In Stock
More available within:
Usually 2 - 3 Working Days
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SKU: INC202
£6.64
FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOsFuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs 2

FuseBox F3011MZ 11 Way SPD Consumer Unit Kit – with 8 RCBOs
In Stock
SKU: F3011MZ/8RCBO
£143.80 £141.18

Showing 181–200 of 2370 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.

Thousands of products in stock ready for next day delivery. Friendly and reliable service, competitive prices.

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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