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    Electrical4less Reviews 4.9 Based on 1488 reviews
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    30 Day Return Policy
    Next Day Delivery Cut Off Time 3PM*

    RCBO - Residual Current Breakers with Over-Current

    RTN320B-030N Live Electrical 3P+N 20A B Curve 30mA Type A RCBO

    Live Electrical 3P+N 20A B Curve 30mA Type A RCBO
    6 in stock
    More available within 1 - 3 working days *
    SKU: RTN320B-030N
    £45.15
    Live Electrical RNA6B-030 RCBO A Type DP Bi-Directional 6A B Curve 30mA

    Live Electrical RNA6B-030 RCBO A Type DP Bi-Directional 6A B Curve 30mA
    Delivery usually within 1 - 3 working days *
    SKU: RNA6B-030
    £10.43
    Live Electrical RNA20C-030 RCBO A Type DP Bi-Directional 20A C Curve 30mA

    Live Electrical RNA20C-030 RCBO A Type DP Bi-Directional 20A C Curve 30mA
    6 in stock
    More available within 1 - 3 working days *
    SKU: RNA20C-030
    £10.43
    Niglon RCBO1-16/30SAX2 16A RCBO – Compact, Bi-Directional, Type A, Curve B, 30mA, 6kA RCBO.

    Niglon RCBO1-16/30SAX2 16A Curve B 30mA Bi-Directional A Type RCBO
    14 in stock
    More available within 1 - 3 working days *
    SKU: RCBO1-16/30SAX2
    £12.78
    Niglon RCBO1-25/30SAX2 25A RCBO – Bi-Directional, Type A, Curve B, 30mA, Compact 18mm, 6kA Rated.

    Niglon RCBO1-25/30SAX2 25A Curve B 30mA Bi-Directional A Type RCBO
    3 in stock
    More available within 1 - 3 working days *
    SKU: RCBO1-25/30SAX2
    £12.78
    Niglon PRCBO10B3-40 40A 3 Phase Type A 10kA RCBO

    Niglon PRCBO10B3-40 40A 3 Phase Type A 10kA RCBO
    Delivery usually within 1 - 3 working days *
    SKU: PRCBO10B3-40
    £72.09
    Live Electrical RNC40B-30N – 40A Double Pole Single Module RCBO

    Live Electrical RNC140B-30N – B40A Double Pole Single Module RCBO
    7 in stock
    More available within 1 - 3 working days *
    SKU: RNC140B-30N
    £10.53
    Live Electrical RKA120B-030 20A 10kA B Curve Compact Bi-Directional RCBO For TPN Distribution Boards

    Live Electrical RKA120B-030 10kA Type A B Curve Compact 20A Bi-Directional RCBO
    10 in stock
    More available within 1 - 3 working days *
    SKU: RKA120B-030
    £11.59
    FuseBox R3PN10C1630BD Curve C 3 Phase 16A RCBOFuseBox 3 Phase RCBO - Front

    FuseBox R3PN10C1630BD 16A 3P+N Curve C Bi-Directional RCBO
    4 in stock
    More available within 1 - 3 working days *
    SKU: R3PN10C1630BD
    £64.72
    WCED WRT106B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 6A

    WCED WRT106B-030 Bi-Directional 10kA Type A 30mA RCBO Curve B 6A
    Delivery usually within 1 - 3 working days *
    SKU: WRT106B-030
    £12.50
    Hager ADC432U Hager ADC432U RCBO 10kA C-32A 30mA Type A

    Hager ADC432U RCBO 10kA C-32A 30mA Type A
    9 in stock
    More available within 1 - 3 working days *
    SKU: ADC432U
    £35.76
    FuseBox Bi-Directional Mini RCBO 06A C Curve 30mA Type A - Compact and Reliable Protection

    FuseBox Bi-Directional Mini RCBO 10A C Curve 30mA Type A
    27 in stock
    More available within 1 - 3 working days *
    SKU: RTAMC10BD
    £13.94
    RTN310C-030N Live Electrical 3P+N 10A C Curve 30mA Type A RCBO

    Live Electrical 3P+N 10A C Curve 30mA Type A RCBO
    Delivery usually within 1 - 3 working days *
    SKU: RTN310C-030N
    £45.15
    Live Electrical RNA6C-030 RCBO A Type DP Bi-Directional 6A C Curve 30mA

    Live Electrical RNA6C-030 RCBO A Type DP Bi-Directional 6A C Curve 30mA
    Delivery usually within 1 - 3 working days *
    SKU: RNA6C-030
    £10.43
    Niglon RCBO1-10/30SAX2 10A RCBO – Bi-Directional, Type A, Curve B, 30mA, 6kA, Compact 18mm Width.

    Niglon RCBO1-10/30SAX2 10A Curve B 30mA Bi-Directional A Type RCBO
    17 in stock
    More available within 1 - 3 working days *
    SKU: RCBO1-10/30SAX2
    £12.78
    Niglon PRCB01B1-32 1P + Neutral 32A Curve B Bi-Directional 10kA RCBO

    Niglon PRCBO10B1-32 1P + Neutral 32A Curve B Bi-Directional 10kA RCBO
    1 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10B1-32
    £19.21
    Niglon PRCB01B1-50 1P + Neutral 50A Curve B Bi-Directional 10kA RCBO

    Niglon PRCBO10B1-50 1P + Neutral 50A Curve B Bi-Directional 10kA RCBO
    1 in stock
    More available within 1 - 3 working days *
    SKU: PRCBO10B1-50
    £19.21
    Live Electrical RKA140C-030 10kA Type A C Curve Compact 40A Bi-Directional RCBO

    Live Electrical RKA140C-030 10kA Type A C Curve Compact 40A Bi-Directional RCBO
    8 in stock
    More available within 1 - 3 working days *
    SKU: RKA140C-030
    £11.59
    Garo DCBOGRB32 Compact RCBO 32A B Curve

    Garo DCBOGRB32 30mA Type A Compact RCBO 32A B Curve
    12 in stock
    More available within 1 - 3 working days *
    SKU: DCBOGRB32
    £10.99
    DCBOGRC06 Garo DCBOGRC6 30mA Type A Compact RCBO 6A C Curve

    Garo DCBOGRC6 30mA Type A Compact RCBO 6A C Curve
    8 in stock
    More available within 1 - 3 working days *
    SKU: DCBOGRC06
    £10.99

    Key Types of RCBOs

    1. Single Pole RCBO:
      Protects a single live phase while detecting earth leakage. It is widely used for residential circuits such as lighting, sockets, or individual appliances, fitting seamlessly into consumer units or distribution boards.
    2. Double Pole RCBO:
      Protects both live and neutral conductors while detecting earth leakage. Commonly used in single-phase circuits that require neutral disconnection, such as outdoor power supplies, HVAC systems, or caravans. It enhances safety by isolating both conductors during faults.
    3. Three-Pole RCBO:
      Designed to protect three-phase circuits in commercial and industrial systems. These RCBOs are ideal for motor controls, machinery, and large-scale electrical systems.
    4. Bi-Directional RCBO:
      Bi-directional RCBOs provide protection against residual currents and overcurrents flowing in either direction. They are essential in circuits with multiple power sources, such as solar PV systems, battery storage, and EV chargers. These devices ensure fault detection regardless of current flow direction, offering enhanced safety in renewable energy setups.
    Type A RCBOs and Why They Are Superior
    • Type A RCBO:
      Detects both standard AC residual currents and pulsating DC residual currents. Type A is highly recommended for modern circuits with electronic devices such as LED lighting, computers, EV chargers, and appliances with variable-speed drives.
    • Type AC RCBO:
      Detects only standard AC residual currents. However, Type AC has become obsolete due to its inability to handle DC components that may saturate the device, reducing its effectiveness. Modern installations should always use Type A for enhanced safety and compliance with evolving standards.
    Tripping Curves

    RCBOs are available with specific tripping curves, each designed to handle different load characteristics:

    • Curve B:
      Suitable for circuits with purely resistive loads, such as lighting or heating, where minimal inrush current is expected.
    • Curve C:
      Designed for circuits with moderate inrush currents, such as those involving fluorescent lighting or small motors. This makes Curve C ideal for most commercial and industrial applications.
    Key Features
    • Comprehensive Protection:
      Combines overload, short circuit, and residual current protection in one device.
    • 30mA Sensitivity:
      All RCBOs in this category are rated at 30mA, ensuring effective protection against earth leakage faults for personal and equipment safety.
    • Current Ratings:
      Available in a range of amperages, from 6A to 50A, making them suitable for various circuit loads.
    • Bi-Directional Functionality:
      Ensures protection in circuits where current flow can reverse, such as renewable energy setups or EV chargers.
    • Compact Design:
      Space-saving construction allows for easy integration into consumer units and distribution boards.
    • Standards Compliance:
      Conforms to IEC 61009-1 and BS EN 61009, ensuring safety and reliability.
    Applications
    • Residential Circuits:
      Provides safety for individual circuits such as lighting, power sockets, and kitchen appliances.
    • Commercial Installations:
      Protects essential systems such as HVAC, elevators, and lighting in offices, retail spaces, and schools.
    • Industrial Systems:
      Ensures the safety of machinery, motor controls, and high-load circuits in factories and warehouses.
    • Renewable Energy Systems:
      Ideal for solar PV arrays, battery storage systems, and EV chargers, particularly with bi-directional functionality.
    Benefits of RCBOs
    • Enhanced Safety:
      Protects against both overcurrent and residual current faults, minimizing fire risks and electric shock hazards.
    • Improved Circuit Isolation:
      Isolates faulty circuits without disrupting power to the rest of the system, reducing downtime and inconvenience.
    • Future-Proofing:
      Type A RCBOs and bi-directional functionality ensure compatibility with modern electrical systems and renewable energy setups.
    • Compliance with Standards:
      Fully adheres to international safety standards, ensuring reliability and durability.

    RCBOs are indispensable in modern electrical installations, offering unmatched safety, reliability, and versatility. Explore our range of single pole, double pole, three-pole, and bi-directional RCBOs to find the ideal solution for your needs. With options like Type A RCBOs and Curve B or C tripping profiles, you can ensure superior protection for any application.






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    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 £150 + VAT (double our standard carriage-paid order value of £75 + 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!

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    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.

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    To keep costs manageable, we dispatch your order once all items are ready, including products with longer lead times.

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    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.

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    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.

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