VAT:
Quotes
  • 0
    • Electrical4less Logo
    0
    Electrical4less Reviews 4.9 Based on 1611 reviews

    UK Mainland Free Delivery £100 + VAT

    30 Day Return Policy

    Next Day Delivery Cut Off Time 3PM

    Circuit Protection

    Circuit Protection by Brand

    Circuit Protection by Brand (1883)

    Consumer Units

    Consumer Units (469)

    Circuit Protection Devices

    Circuit Protection Devices (1052)

    EV Circuit Protection

    EV Circuit Protection (105)

    SPD Surge Protection Devices

    SPD Surge Protection Devices (125)

    Three Phase Distribution Boards

    Three Phase Distribution Boards (93)

    Switch Fuses - Isolators

    Switch Fuses - Isolators (175)

    Switch Gear

    Switch Gear (266)

    Street Lighting Circuit Protection

    Street Lighting Circuit Protection (13)

    Showing 2221–2240 of 2331 results

    Deligo MC252NCP1 2NC 25A 230V AC Modular Contactor

    Deligo | MC252NCP1 | 2NC 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC252NCP1
    £11.20
    Deligo MC252P1 2NO 25A 230V AC Modular Contactor

    Deligo | MC252P1 | 2NO 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC252P1
    £11.33
    Deligo MC254NCP2 4NC 25A 230V AC Modular Contactor

    Deligo | MC254NCP2 | 4NC 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC254NCP2
    £21.54
    Deligo MC254P2 4NO 25A 230V AC Modular Contactor

    Deligo | MC254P2 | 4NO 25A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC254P2
    £18.73
    Deligo MC404NCP3 4NC 40A 230V AC Modular Contactor

    Deligo | MC404NCP3 | 4NC 40A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC404NCP3
    £31.08
    Deligo MC404P3 4NO 63A 230V AC Modular Contactor

    Deligo | MC404P3 | 4NO 63A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC404P3
    £27.03
    Deligo MC634P3 4NO 63A 230V AC Modular Contactor

    Deligo | MC634P3 | 4NO 63A AC1 230V AC | Modular Contactor
    Delivery usually within 1 - 3 working days*
    SKU: MC634P3
    £31.32
    1000V DC 1 String Solar Combiner BoxWCED | WPPV-1S1 | 1000V DC Solar Combiner Box | IP65 | 1 String In 1 String Out

    WCED | WPPV-1S1 | 1000V DC Solar Combiner Box | IP65 | 1 String In 1 String Out
    Delivery usually within 1 - 3 working days*
    SKU: WPPV-1S1
    £63.91
    1000V DC 2 String Solar Combiner Box1000V DC Dual String PV Protection with Integrated Isolator & Surge Protection

    WCED | WPPV-2S2 | 1000V DC Solar Combiner Box | IP65 | 2 String In 2 String Out
    Out of Stock
    This item cannot be back-ordered
    SKU: WPPV-2S2
    £107.22
    Read more
    1000V DC 2 String Metal Solar Combiner BoxWCED | WMPV-2S2 | 1000V DC Metal Solar Combiner Box | IP65 | 2 String In 2 String Out

    WCED | WMPV-2S2 | 1000V DC Metal Solar Combiner Box | IP65 | 2 String In 2 String Out
    Out of Stock
    This item cannot be back-ordered
    SKU: WMPV-2S2
    £104.16
    Read more
    WAGO 879-3040 Energy Meter

    WAGO | 879-3040 | Energy Meter MID26 3 Phase CT 1A/5A | Modbus & M-Bus
    Delivery usually within 3 - 5 working days*
    SKU: 879-3040
    £225.25
    WAGO 879-3020 Energy MeterMID Approved 3-Phase Direct Measurement up to 65A

    WAGO | 879-3020 | Energy Meter MID 65A 3 Phase Direct Connection | Modbus & M-Bus
    Delivery usually within 3 - 5 working days*
    SKU: 879-3020
    £208.25
    WAGO 879-3000 Energy MeterWAGO 879-3000 Energy Meter

    WAGO | 879-3000 | Energy Meter MID24 65A 3 Phase Direct Connection | Modbus & M-Bus
    Delivery usually within 3 - 5 working days*
    SKU: 879-3000
    £208.25
    Timeguard IS3N-32AC 32A 3P IP66 Rotary Isolator Switch

    Timeguard | IS3N-32AC | 32A 3P IP66 | Rotary Isolator Switch
    3 In Stock
    More available within 1 - 3 working days*
    SKU: IS3N-32AC
    £9.75
    Timeguard IS4N-20AC 20A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-20AC | 20A 4P IP66 | Rotary Isolator Switch
    3 In Stock
    More available within 1 - 3 working days*
    SKU: IS4N-20AC
    £9.75
    Timeguard IS4N-32AC 32A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-32AC | 32A 4P IP66 | Rotary Isolator Switch
    1 In Stock
    More available within 1 - 3 working days*
    SKU: IS4N-32AC
    £10.40
    Timeguard IS4N-40AC 40A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-40AC | 40A 4P IP66 | Rotary Isolator Switch
    Delivery usually within 1 - 3 working days*
    SKU: IS4N-40AC
    £13.65
    Timeguard IS4N-63AC 63A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-63AC | 63A 4P IP66 | Rotary Isolator Switch
    6 In Stock
    More available within 1 - 3 working days*
    SKU: IS4N-63AC
    £16.25
    Timeguard IS4N-100AC 100A 4P IP66 Rotary Isolator Switch

    Timeguard | IS4N-100AC | 100A 4P IP66 | Rotary Isolator Switch
    Delivery usually within 1 - 3 working days*
    SKU: IS4N-100AC
    £36.40
    Hager HR510 Earth Leakage Relay

    Hager | HR510 | Earth Leakage Relay Type A | 0.03–10A Adjustable Trip
    Delivery usually within 3 - 4 working days*
    SKU: HR510
    £332.53

    Showing 2221–2240 of 2331 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.

     






    © 2026 Electrical4less
    We accept Visa We accept Mastercard We accept Maestro We accept PayPal We use Amazon Pay We use Apple Pay We use Google Pay
    Next Day Delivery

    Cut-Off Time and Order Information
    To ensure your order qualifies for next day delivery, please place your order by 3:00 PM. This is subject to all items being available on the shelf at the time of your order. For orders where the total value exceeds £200 + VAT (double our standard carriage-paid order value of £100 + VAT), we are happy to split the delivery into two shipments if some items are needed urgently and others are not immediately available. If you have any questions or need further assistance, feel free to reach out to us via WhatsApp for live support. We’re here to help!

    In Stock Delivery Policy

    Free Next-Day Delivery Over £100 + VAT:
    Orders above £100 + 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 £200 + 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 £200 + 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.

    Supplier Lead Time & Availability

    This item may be sourced from our supplier before dispatch.
    The lead time shown is an estimate only and is based on the usual supplier timeframe. It is subject to supplier availability and is not a guaranteed delivery date.
    We do not have a live supplier stock feed, so supplier stock can change without notice.
    Delivery timers and courier estimates apply once the item is available for dispatch.
    If the item is unavailable, we will contact you with the available options, including waiting for stock, choosing an alternative product, cancellation, or a refund for the unavailable item.
    This does not affect your statutory rights.

    Didn't find what you're looking for?

    No problem — message us directly on WhatsApp and we’ll help you out.

    We usually respond within minutes during working hours.

    Cookie Preferences
    We use cookies to enhance your browsing experience, serve personalised content, and analyse our traffic. By clicking "Accept All", you consent to our use of cookies. To find out more about how we use cookies please view our Privacy Policy.

    Cookie Preferences

    We use cookies to help you navigate the site and use its features. Below you will find details about each cookie category.

    Cookies marked as "Necessary" are stored in your browser and are required for the site to function properly.

    We also use third-party cookies to analyse site usage, remember your preferences, and show you relevant content and ads. These are only stored with your consent.

    You can enable or disable optional cookies below. Turning some off may affect how the site works for you.

    Necessary Always Active

    Necessary cookies are needed for core site features, such as secure login and saving your cookie preferences. They do not store personal data.