facebook pixel Circuit Protection - Page 71 of 88 - 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 1158 reviews
UK Mainland Free Delivery £75 + VAT
14 Day Return Policy
Next Day Delivery Cut Off Time 3PM*

Circuit Protection

Showing 1401–1420 of 1760 results

Circuit Protection by Brand

Circuit Protection by Brand (1494)

EV Circuit Protection

EV Circuit Protection (109)

Consumer Units

Consumer Units (105)

Three Phase Distribution Boards

Three Phase Distribution Boards (106)

Circuit Protection Devices

Circuit Protection Devices (397)

Electrical Isolators & Switches

Electrical Isolators & Switches (110)

Switch Gear & Accessories

Switch Gear & Accessories (198)

Meter Boards & Installation Panels

Meter Boards & Installation Panels (4)

SPD Surge Protection Devices

SPD Surge Protection Devices (109)

Live Electrical CZ3125B 3P 125A MCB 10kA Curve B

Live Electrical CZ3125B 3P 125A MCB 10kA Curve B

Out of stock
This item cannot be back-ordered
SKU: CZ3125B
£19.31
Read more
Live Electrical CZ380C 3P 80A MCB 10kA Curve C

Live Electrical CZ380C 3P 80A MCB 10kA Curve C

Out of stock
This item cannot be back-ordered
SKU: CZ380C
£19.31
Read more
Live Electrical CZ3100C 3P 100A MCB 10kA Curve C

Live Electrical CZ3100C 3P 100A MCB 10kA Curve C

Out of stock
This item cannot be back-ordered
SKU: CZ3100C
£19.31
Read more
Live Electrical CZ3125C 3P 125A MCB 10kA Curve C

Live Electrical CZ3125C 3P 125A MCB 10kA Curve C

Out of stock
This item cannot be back-ordered
SKU: CZ3125C
£19.31
Read more
Live Electrical CZ480B 4P 80A MCB 10kA Curve B

Live Electrical CZ480B 4P 80A MCB 10kA Curve B

Out of stock
This item cannot be back-ordered
SKU: CZ480B
£27.68
Read more
Live Electrical CZ4100B 4P 100A MCB 10kA Curve B

Live Electrical CZ4100B 4P 100A MCB 10kA Curve B

Out of stock
This item cannot be back-ordered
SKU: CZ4100B
£27.68
Read more
Live Electrical CZ4125B 4P 125A MCB 10kA Curve B

Live Electrical CZ4125B 4P 125A MCB 10kA Curve B

Out of stock
This item cannot be back-ordered
SKU: CZ4125B
£27.68
Read more
Live Electrical CZ480C 4P 80A MCB 10kA Curve C

Live Electrical CZ480C 4P 80A MCB 10kA Curve C

Out of stock
This item cannot be back-ordered
SKU: CZ480C
£27.68
Read more
Live Electrical CZ4100C 4P 100A MCB 10kA Curve C

Live Electrical CZ4100C 4P 100A MCB 10kA Curve C

Out of stock
This item cannot be back-ordered
SKU: CZ4100C
£27.68
Read more
Live Electrical CZ4125C 4P 125A MCB 10kA Curve C

Live Electrical CZ4125C 4P 125A MCB 10kA Curve C

Out of stock
This item cannot be back-ordered
SKU: CZ4125C
£27.68
Read more
Live Electrical MDAC2P16/12V 2 Pole 16A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P16/12V 2 Pole 16A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P16/12V
Read more
Live Electrical MDAC2P20/12V 2 Pole 20A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P20/12V 2 Pole 20A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P20/12V
Read more
Live Electrical MDAC2P25/12V 2 Pole 25A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P25/12V 2 Pole 25A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P25/12V
Read more
Live Electrical MDAC2P32/12V 2 Pole 32A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P32/12V 2 Pole 32A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P32/12V
Read more
Live Electrical MDAC2P40/12V 2 Pole 40A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P40/12V 2 Pole 40A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P40/12V
Read more
Live Electrical MDAC2P63/12V 2 Pole 63A 2NO AC Contactor/12V DC Coil

Live Electrical MDAC2P63/12V 2 Pole 63A 2NO AC Contactor/12V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P63/12V
Read more
Live Electrical MDAC2P16/24V 2 Pole 16A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P16/24V 2 Pole 16A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P16/24V
Read more
Live Electrical MDAC2P20/24V 2 Pole 20A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P20/24V 2 Pole 20A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P20/24V
Read more
Live Electrical MDAC2P25/24V 2 Pole 25A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P25/24V 2 Pole 25A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P25/24V
Read more
Live Electrical MDAC2P32/24V 2 Pole 32A 2NO AC Contactor/24V DC Coil

Live Electrical MDAC2P32/24V 2 Pole 32A 2NO AC Contactor/24V DC Coil

Delivery usually within 1-3 working days*
SKU: MDAC2P32/24V
Read more
More products

Showing 1401–1420 of 1760 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.