facebook pixel Circuit Protection - Page 23 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 441–460 of 1808 results

Circuit Protection by Brand

Circuit Protection by Brand (1510)

EV Circuit Protection

EV Circuit Protection (111)

Consumer Units

Consumer Units (283)

DIN Rail Enclosures

DIN Rail Enclosures (51)

Three Phase Distribution Boards

Three Phase Distribution Boards (100)

Circuit Protection Devices

Circuit Protection Devices (804)

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)

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
WCED ATDR4100-100 Time Delay Type A 4 Pole 100A 100mA RCD

WCED ATDR4100-100 Time Delay Type A 4 Pole 100A 100mA RCD

7 In stock
More available within 1-3 working days*
SKU: ATDR4100-100
£34.97

2-£33.22£1.75£34.97
3-£32.35£2.62£34.97
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
FuseBox TPN11FBX Fusebox TPN11FBX 11 Way 125A Three Phase Board 1FuseBox TPN11FBX Fusebox TPN11FBX 11 Way 125A Three Phase Board 2

Fusebox TPN11FBX 11 Way 125A Three Phase Board

4 In stock
This item cannot be back-ordered
SKU: TPN11FBX
£255.94
Add to quote
WCED WAC4P25CO WCED 4P 25A 2NC 2NO Modular Contactor 1WCED WAC4P25CO WCED 4P 25A 2NC 2NO Modular Contactor 2

WCED 4P 25A 2NC 2NO Modular Contactor

9 In stock
More available within 1-3 working days*
SKU: WAC4P25CO
£10.43

3-£10.17£0.26£10.43
5-£9.91£0.52£10.43
10-£9.65£0.78£10.43
20-£9.39£1.04£10.43
Add to quote
Live Electrical LSMC8M-SP Live Electrical 5 Way SPD Metal Consumer Unit 1Live Electrical LSMC8M-SP Live Electrical 5 Way SPD Metal Consumer Unit 2

Live Electrical 5 Way SPD Metal Consumer Unit

4 In stock
More available within 1-3 working days*
SKU: LSMC8M-SP
£40.91
Add to quote
Live Electrical LSMC16M-SP Live Electrical 13 Way SPD Metal Consumer Unit 1Live Electrical LSMC16M-SP Live Electrical 13 Way SPD Metal Consumer Unit 2

Live Electrical 13 Way SPD Metal Consumer Unit

7 In stock
More available within 1-3 working days*
SKU: LSMC16M-SP
£48.81
Add to quote
Live Electrical LEV440SP-BP IP65 EV Consumer Unit with 40A B Curve EV-Optimised RCBO, SPD, and Busbar Live Electrical LEV440SP-BP IP65 EV Consumer Unit B40 RCBO + Type 2 SPD + Busbar

Live Electrical LEV440SP-BP IP65 EV Consumer Unit B40 RCBO + Type 2 SPD + Busbar

9 In stock
More available within 1-3 working days*
SKU: LEV440SP-BP
£30.99

3-£29.44£1.55£30.99
5-£28.67£2.32£30.99
10-£27.89£3.10£30.99
20-£26.34£4.65£30.99
Add to quote
Hager ADB416U Hager ADB416U RCBO 10kA B-16A 30mA Type A

Hager ADB416U RCBO 10kA B-16A 30mA Type A

Delivery usually within 1-3 working days*
SKU: ADB416U
£35.76
Add to quote
WCED WKC140B 10kA 1 Pole MCB Curve B 40A

WCED WKC140B 10kA 1 Pole MCB Curve B 40A

Delivery usually within 1-3 working days*
SKU: WKC140B
£2.65

5-£2.54£0.11£2.65
10-£2.48£0.17£2.65
Add to quote
WCED WKC163B 10kA 1 Pole MCB Curve B 63A

WCED WKC163B 10kA 1 Pole MCB Curve B 63A

Delivery usually within 1-3 working days*
SKU: WKC163B
£2.65

5-£2.54£0.11£2.65
10-£2.48£0.17£2.65
Add to quote
Live Electrical MS4125D 4 Pole 125A Main Switch

Live Electrical MS4125D 4 Pole 125A Main Switch

Delivery usually within 1-3 working days*
SKU: MS4125D
£12.26
Add to quote
Hager ADA106U Type A RCBO

Hager ADA170U RCBO 10kA C-20A 30mA Type A

Out of stock
This item cannot be back-ordered
SKU: ADA170U
£30.99
Read more
Live Electrical CB132D Live Electrical CB132D 32A Curve D 10kA MCB 1Live Electrical CB132D Live Electrical CB132D 32A Curve D 10kA MCB 2

Live Electrical CB132D 32A Curve D 10kA MCB

20 In stock
More available within 1-3 working days*
SKU: CB132D
£2.95
Add to quote
Live Electrical CB140D Live Electrical CB140D 40A Curve D 10kA MCB 1Live Electrical CB140D Live Electrical CB140D 40A Curve D 10kA MCB 2

Live Electrical CB140D 40A Curve D 10kA MCB

17 In stock
More available within 1-3 working days*
SKU: CB140D
£2.95
Add to quote
Live Electrical MAC4P20 Live Electrical MAC4P20 20AModular AC Contactor 4 Pole NO 1Live Electrical MAC4P20 Live Electrical MAC4P20 20AModular AC Contactor 4 Pole NO 2

Live Electrical MAC4P20 20AModular AC Contactor 4 Pole NO

9 In stock
More available within 1-3 working days*
SKU: MAC4P20
£12.99
Add to quote
WCED WKB463B WCED 4 Pole 63A B Curve 10 kA MCB 1WCED WKB463B WCED 4 Pole 63A B Curve 10 kA MCB 2

WCED 4 Pole 63A B Curve 10 kA MCB

Delivery usually within 1-3 working days*
SKU: WKB463B
£13.45

5-£12.91£0.54£13.45
10-£12.58£0.87£13.45
Add to quote
More products

Showing 441–460 of 1808 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.