facebook pixel Circuit Protection - Page 22 of 91 - Electrical 4 Less
National  8:00am to 5pm - Mon-Fri
Quotes
020 7736 5755
sales@electrical4less.co.uk
VAT:
Quotes
Electrical 4 Less
0
Electrical4less Reviews 4.9 Based on 1181 reviews
UK Mainland Free Delivery £75 + VAT
14 Day Return Policy
Next Day Delivery Cut Off Time 3PM*

Circuit Protection

Showing 421–440 of 1806 results

Circuit Protection by Brand

Circuit Protection by Brand (1508)

EV Circuit Protection

EV Circuit Protection (111)

Consumer Units

Consumer Units (281)

DIN Rail Enclosures

DIN Rail Enclosures (51)

Three Phase Distribution Boards

Three Phase Distribution Boards (100)

Circuit Protection Devices

Circuit Protection Devices (798)

Switch Fuses, Isolators & Changeover Switches

Switch Fuses, Isolators & Changeover Switches (117)

Switch Gear

Switch Gear (217)

Meter Boards & Electric Meters

Meter Boards & Electric Meters (16)

SPD Surge Protection Devices

SPD Surge Protection Devices (107)

Live Electrical RA216C-030 Live Electrical Double Pole Type A RCBO - Curve C - 16A 1Live Electrical RA216C-030 Live Electrical Double Pole Type A RCBO - Curve C - 16A 2

Live Electrical Double Pole Type A RCBO – Curve C – 16A

Out of stock
This item cannot be back-ordered
SKU: RA216C-030
£16.06
Read more
Live Electrical BUSBAR CAP RED Busbar Cap - Pack of 100

Busbar Cap – Pack of 100

Delivery usually within 1-3 working days*
SKU: BUSBAR CAP RED
£4.50
Add to quote
Live Electrical SA120 Live Electrical 1 Pole 10kA/20kA Type 2 Surge Protective Device

Live Electrical SA120 1 Pole 10kA/20kA Type 2 SPD Surge Protective Device

5 In stock
More available within 1-3 working days*
SKU: SA120
£7.95
Add to quote
FuseBox MT10C251 FuseBox MT10C251 25A Single Pole 10kA C Curve MCB

FuseBox MT10C251 25A Single Pole 10kA C Curve MCB

11 In stock
More available within 1-3 working days*
SKU: MT10C251
£3.22
Add to quote
Live Electrical LSMC10M-SP Live Electrical 7 Way SPD Metal Consumer Unit 1Live Electrical LSMC10M-SP Live Electrical 7 Way SPD Metal Consumer Unit 2

Live Electrical 7 Way SPD Metal Consumer Unit

1 In stock
More available within 1-3 working days*
SKU: LSMC10M-SP
£41.90
Add to quote
Live Electrical MMGU05-SR Live Electrical MMGU05-SR SPD Garage/EV Consumer Unit with 40A RCBO 1Live Electrical MMGU05-SR Live Electrical MMGU05-SR SPD Garage/EV Consumer Unit with 40A RCBO 2

Live Electrical MMGU05-SR SPD Garage/EV Consumer Unit with 40A RCBO

10 In stock
More available within 1-3 working days*
SKU: MMGU05-SR
£41.98
Add to quote
Live Electrical CB110D Live Electrical CB110D 10A Curve D 10kA MCB 1Live Electrical CB110D Live Electrical CB110D 10A Curve D 10kA MCB 2

Live Electrical CB110D 10A Curve D 10kA MCB

13 In stock
More available within 1-3 working days*
SKU: CB110D
£2.95
Add to quote
Live Electrical CB116D Live Electrical CB116D 16A Curve D 10kA MCB 1Live Electrical CB116D Live Electrical CB116D 16A Curve D 10kA MCB 2

Live Electrical CB116D 16A Curve D 10kA MCB

15 In stock
More available within 1-3 working days*
SKU: CB116D
£2.95
Add to quote
Live Electrical MAC2P40 Live Electrical MAC2P40 40A Modular AC Contactor 2 Pole NO 1Live Electrical MAC2P40 Live Electrical MAC2P40 40A Modular AC Contactor 2 Pole NO 2

Live Electrical MAC2P40 40A Modular AC Contactor 2 Pole NO

5 In stock
More available within 1-3 working days*
SKU: MAC2P40
£9.79
Add to quote
Fusebox EV40A EV Charging Board/ consumer unit

Fusebox EV40A EV Charger Supply Unit 40A

6 In stock
More available within 1-3 working days*
SKU: EV40A
£43.90
Add to quote
Live Electrical TPN16-125S Live Electrical 125 Amp 16 Way TPN Distribution Board with SPD 1Live Electrical TPN16-125S Live Electrical 125 Amp 16 Way TPN Distribution Board with SPD 2

Live Electrical TPN16-125S 125 Amp 16 Way TPN Distribution Board with SPD

Delivery usually within 1-3 working days*
SKU: TPN16-125S
£259.00
Add to quote
FuseBox AFMF18 Fusebox AFMF18 18 Module Flush Mounting Frame Kit 1

Fusebox AFMF18 18 Module Flush Mounting Frame Kit

1 In stock
More available within 1-3 working days*
SKU: AFMF18
£17.55
Add to quote
FuseBox F2007RA Fusebox F2007RA 7 Way RCD Consumer Unit 80A 1

Fusebox F2007RA 7 Way RCD Consumer Unit 80A

1 In stock
More available within 1-3 working days*
SKU: F2007RA
£41.14
Add to quote
WCED WMCU440SP Whitecliffe Metal Unit 100A Main Switch and Type 2 SPD Surge Protection

WCED WMCU440SP Whitecliffe Metal Unit 100A Main Switch and Type 2 SPD Surge Protection

7 In stock
More available within 1-3 working days*
SKU: WMCU440SP
£37.65

3-£35.77£1.88£37.65
5-£34.83£2.82£37.65
10-£33.89£3.77£37.65
Add to quote
WCED WME14/SP WCED 11 Way SPD Metal Consumer Unit

WCED 11 Way SPD Metal Consumer Unit

5 In stock
More available within 1-3 working days*
SKU: WME14/SP
£49.01
Add to quote
WCED ARD440-030 4 Pole 40A 30mA Type A High Immunity RCD WCED ARD440-030 WCED 4 Pole 40A 30mA Type A High Immunity RCD 2

WCED ARD440-030 4 Pole 40A 30mA Type A High Immunity RCD

3 In stock
More available within 1-3 working days*
SKU: ARD440-030
£18.93

2-£17.98£0.95£18.93
3-£17.51£1.42£18.93
Add to quote
Live Electrical RA206B-030 Live Electrical Double Pole Type A RCBO - Curve B - 6A 1Live Electrical RA206B-030 Live Electrical Double Pole Type A RCBO - Curve B - 6A 2

Live Electrical Double Pole Type A RCBO – Curve B – 6A

Delivery usually within 1-3 working days*
SKU: RA206B-030
£16.06
Add to quote
Live Electrical RA216B-030 Live Electrical Double Pole Type A RCBO - Curve B - 16A 1Live Electrical RA216B-030 Live Electrical Double Pole Type A RCBO - Curve B - 16A 2

Live Electrical Double Pole Type A RCBO – Curve B – 16A

Out of stock
This item cannot be back-ordered
SKU: RA216B-030
£16.06
Read more
Live Electrical RA232B-030 Live Electrical Double Pole Type A RCBO - Curve B - 32A 1Live Electrical RA232B-030 Live Electrical Double Pole Type A RCBO - Curve B - 32A 2

Live Electrical Double Pole Type A RCBO – Curve B – 32A

Delivery usually within 1-3 working days*
SKU: RA232B-030
£16.06
Add to quote
Wiska 10111966 Wiska 10 Way Consumer Unit Relocation Kit 818 CUR/L 1Wiska 10111966 Wiska 10 Way Consumer Unit Relocation Kit 818 CUR/L 2

Wiska 818 CUR/L 10 Way Consumer Unit Relocation Kit

Delivery usually within 1-3 working days*
SKU: 10111966
£58.95
Add to quote
More products

Showing 421–440 of 1806 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.

 

READ MORE
© 2025 Electrical 4 Less
Electrical 4 Less

    Electrical 4 Less
    whatsup-logo
    Delivery Policy
    Free Next-Day Delivery Over £75 + VAT:
    Orders above £75 + VAT qualify for free next-day delivery via DPD for in-stock items. While we strive for timely dispatch, we recommend placing orders early to avoid potential delays. Once dispatched, unexpected issues may arise despite the courier’s efforts.

    Orders Below £150 + VAT:
    To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

    Need items faster? You can pay for an additional delivery service to receive in-stock items sooner. Simply email us with your order details, and we’ll send you a payment link for the extra delivery cost.

    Orders Above £150 + VAT:
    For larger orders, we can split delivery at no extra cost. In-stock items will be sent immediately, with the remaining items dispatched once available.
    Dispatch Times
    Items with Lead Times (e.g., 1–3 Working Days):
    This means we need to source the product from our supplier before sending it to you. The estimated dispatch time is displayed on each product page.

    Out of Stock at Supplier:
    If an item is unavailable at the supplier, we will contact you promptly. You’ll have the option to choose an alternative product or request a full refund.