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RCBOs are residual current circuit breakers with over current protection. Effectively, an RCBO is a unit that combines an [RCD (Residual Current Device)](/web/c/automation-control-gear/circuit-protection-circuit-breakers/rcds/) and [MCB (Miniature Circuit Breaker)](/web/c/automation-control-gear/circuit-protection-circuit-breakers/mcbs/). Find out more in our comprehensive [RCBOs guide](/web/content/discovery/ideas-and-advice/rcbo-guide).

RCBOs combine overload and short circuit protection with protection against earth leakage currents. They will disconnect the circuit when the current becomes unbalanced, protecting both people and equipment.

RCBOs are available in a large range of different breaking capacities and can be used in applications from industrial fields to home appliances.



Shop our range of RCBOs to ensure your electrical circuits are running safely. Browse our latest RCBO Offers from leading brands. Free Next Day Delivery.

RCBOs | RCBO | Residential Circuit Breakers | RS

RCBOs

Browse our extensive range high-quality of Type B RCBOs from industry-leading brands. Buy Type B RCBOs in various current ratings. Free Next Day Delivery.

Residential Circuit Breakers | Type B RCBO | RS

<p>RCBO stands for Residual Current Circuit Breaker with Over Current. RCBOs combine the two main functions of an MCB and an RCD. They are a type of circuit protection device designed to disconnect a circuit when a current becomes unbalanced. Therefore, protecting both equipment and people.</p><p>Here at RS, we have an extensive range of Type B RCBOs from industry-leading brands including ABB, Contactum, Schneider Electric, Siemens, and Eaton</p><h2>What is a Type B RCBO?</h2><p>RCBOs will have some key attributes that differentiate them from one another. One is the trip curve or tripping characteristic. It refers to the operational and tripping behaviour of an RCBO, in the event of a short circuit or overload. A type B RCBO is designed to trip at fault currents of 3-5 times the rated current.</p><h2>Where would I use a Type B RCBO?</h2><p>An RCBO type B are generally best suited to domestic applications, however, they can in be used in light commercial scenarios where the switching surge is low.</p>

Buy from our selection of rcbos from Europa. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Europa RCBOs | RS

Buy our range of type a RCBOs. Browse our latest rcbos offers. Don't miss out on our latest deals!

Type A RCBOs | RS

Buy our range of from our selection of rcbos from Legrand. At RS, we strive to give you the best offers from our supplier and to promptly deliver in the shortest time.

Legrand RCBOs | RS

Browse our range of High-Quality RCBOs from Lovato. Buy Lovato Type C RCBOs available in various current ratings. Free Next Day Delivery.

Lovato Rcbos | RS Components

Browse our range of High-Quality Contactum RCBOs. Buy Contactum Compact RCBOs in a range of current ratings. Free Next Day Delivery.

Contactum RCBOs | Compact & Mini Contactum RCBOs | RS

<p>Need a reliable, high-quality RCBO for your next application, well look no further. Here, at RS we have a great selection of RCBOs from the well-known brand Contactum. Our range of Contactum RCBOs is available with Type B or Type C tripping characteristics, with current ratings from as little as 6A right up to 50A. Choose from the popular Contactum Compact RCBO and Contactum Mini RCBO Series.</p><h2>Why should I buy Contactum RCBOs?</h2><p>Contactum has been designing and producing superior quality circuit protection devices for more than 80 years. A proud British manufacturer that works closely with top-class electrical engineers ensuring all of their RCBOs are robust, and reliable and offer fantastic mechanical and electrical life.</p><h3>Features and Benefits</h3><ul><li>RCBOs tested to IEC/EN 61009-1</li><li>Compact and lightweight</li><li>Highly durable with robust connections</li><li>Easy wiring, no special tooling required</li><li>Toggle control type</li><li>Fits on industry-standard Top hat DIN Rail</li></ul>

Buy Eaton Memshield RCBOs from RS. Protect against electrical faults with a Memshield RCBO by Eaton. Free next day delivery!

Eaton Memshield RCBOs | RS

<p>Ensure comprehensive protection for your electrical power distribution system and devices with the Eaton Memshield range of RCBOs.</p><h2>What's an RCBO?</h2><p>An RCBO (Residual Current Circuit Breaker with Overcurrent Protection) is a device used in electrical installations to protect against faults and shocks in a circuit. It has the functions of both an RCD and MCB. It will monitor the flow of current and will trip if it detects a fault or overcurrent, to cut off the power supply. This guards against hazards occurring such as electric shocks, or fires, which could cause damage to equipment or injury to persons. You can find these devices used in many industries and sectors such as in manufacturing facilities, warehouses, construction, healthcare, hospitality, data centres, as well as commercial and residential areas.</p><p>Supported by Eaton's long history as global power management experts, Eaton Memshield RCBOs are designed to provide dependable, safe, and high-performance protection. They offer advantages such as positive contact indication, a compact and modular design, 30mA trip sensitivity, DIN rail mounting, Type B and Type C tripping, and a test trip button.</p>

Buy Eaton PXK RCBOs from RS. Enhance the safety of your electrical system with PXK series RCBOs by Eaton. Free next day delivery!

Eaton PXK RCBOs | RS

<p>For optimal protection against electrical faults, the Eaton PXK series RCBOs are the perfect solution.</p><h2>What's an RCBO and how does it work?</h2><p>An RCBO is a device which merges the functionality of an RCD (residual current device) and an MCB (miniature circuit breaker). This enables it to detect and guard against ground faults whilst also offering overcurrent protection in one handy unit. With an RCBO you can ensure enhanced safety for your people and equipment, as the risk of electrical fires and shocks is reduced. They work by checking for abnormal conditions and instantly shutting off the power if a fault is detected.</p><p>Eaton's PXK series include features such as: easy DIN rail mounting, Type A, B, or C tripping, wide operating temperature ranges for use in tough environments, sensitivity to pulse current, breaking capacity of 10 kA, and compatibility with standard busbars. They are single pole RCBOs.</p><p>Eaton serve over 175 countries and are a trusted industry leader in creating innovative power management solutions. Their products are designed to provide greater reliability, sustainability, safety, and efficiency, so you can rely on them for any application.</p>

Buy from our range of ABB RCBOs. At RS, our aim is to give you the best offers with free next day delivery.

ABB RCBOs | RS

<p>ABB RCBO's are residual circuit breakers with over current protection, that combine the functionality of an RCD and MCB to protect against two types of faults, over-current and residual current. Over-current can show in two ways, by either short circuit, or overload. Overload occurs when the power being drawn from the circuit exceeds the capacity of the cable and is a result of too many devices being in use in the circuit. Short circuit occurs when neutral and live conductors come in to contact with one another, causing electrical current to rush around the circuit in a loop and multiply the amperage by many thousands. Residual current, also referred to as earth leakage, occurs when a circuit is broken accidently through DIY accidents or poor wiring. ABB RCBO's effectively protect equipment and users from these two fault types.</p><h2>How does an ABB RCBO work?</h2><p>Within ABB's RCBO's range, a residual circuit breaker with over current protection works by disconnecting the circuit as soon as the current becomes unbalanced, protecting both equipment and users from any damage or injury.</p><h3>Why choose an RCBO from ABB's range?</h3><p>ABB's range includes RCBO's with a large variety of different breaking capacities, meaning there is a product to suit many different customer requirements. ABB RCBO's are a versatile choice and are available for use in a variety of industrial applications, as well as in domestic applications, such as appliances around the home.</p>

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Schneider RCBO | RS

<p>The Schneider Electric RCBO (Residual Current Breaker with Overload) is a pivotal component in modern electrical safety, combining the functions of an MCB (Miniature Circuit Breaker) and an RCD (Residual Current Device). This innovative device offers enhanced protection against overloads, short circuits, and earth leakage, making it an indispensable tool for safeguarding electrical circuits in residential, commercial, and industrial settings. Schneider Electric's RCBO range reflects their commitment to safety, reliability, and technological advancement in electrical protection solutions.</p><p><strong>Features and Benefits</strong></p><ul><li><strong>Combined Protection:</strong> The RCBO offers combined protection against overcurrent (both overload and short circuit) and earth fault currents, enhancing the safety of electrical installations.</li><li><strong>Compact Design:</strong> Schneider Electric's RCBOs are designed to be compact, saving valuable space in consumer units and distribution boards, which is especially beneficial in modern installations where space is at a premium.</li><li><strong>Easy Installation and Maintenance:</strong> These RCBOs are user-friendly in terms of installation and maintenance, featuring simple mounting and dismounting mechanisms that reduce installation time and complexity.</li><li><strong>High Sensitivity:</strong> Offering high sensitivity to earth leakage currents, Schneider Electric RCBOs ensure rapid disconnection in the event of a fault, thereby providing superior protection for both equipment and users.</li><li><strong>Variety of Current Ratings:</strong> The RCBO range comes in various current ratings to cater to different load requirements, allowing for flexible application across diverse electrical systems.</li><li><strong>Compliance with Safety Standards:</strong> Schneider Electric's RCBOs are rigorously tested and comply with international safety standards, ensuring reliable protection in various applications.</li></ul><p><strong>Frequently Asked Questions (FAQs)</strong></p><p><strong>What makes the Schneider Electric RCBO different from traditional circuit breakers?</strong><br>Unlike traditional circuit breakers that only protect against overcurrent, the Schneider Electric RCBO provides dual protection by also guarding against earth leakage currents, offering a higher level of safety for both people and equipment.</p><p><strong>Are Schneider Electric RCBOs suitable for residential use?</strong><br>Yes, Schneider Electric RCBOs are ideal for residential use, providing comprehensive protection against electrical hazards commonly encountered in homes, such as appliance faults or damaged wiring.</p><p><strong>How do Schneider Electric RCBOs contribute to energy efficiency?</strong><br>While their primary function is safety, Schneider Electric RCBOs also contribute to energy efficiency by preventing energy wastage caused by electrical faults and ensuring the optimal functioning of electrical systems.</p>

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Eaton RCBOs | RS

<p>Ensure vital protection for your electrical circuits against overcurrent and residual current with Eaton RCBOs at RS.</p><p>Eaton products are designed to answer the demands of today's rapidly changing world, offering high-quality, sustainable, and high performance power solutions. They provide an effective means of managing power for many areas such as businesses, buildings, aircrafts, machinery, and transport.</p><p>Eaton have a great selection of RCBOs to choose from, including ranges such as Memshield and PXK.</p><p>Their RCBOs include features such as:</p><ul><li>High trip sensitivity</li><li>DIN rail mounting for space-saving and efficient organisation</li><li>UV resistance ensuring defence against sunlight damage</li><li>Screw terminals </li><li>LED indicators</li><li>Test buttons</li><li>RCBOs with type A, B or C tripping characteristics</li><li>Variety of current ratings available</li></ul><h2>What's an RCBO?</h2><p>RCBO stands for Residual Current Circuit Breaker with Overcurrent protection. An RCBO is essentially an RCD (residual current device) with overcurrent protection.</p><p>The purpose of an RCBO is to protect against overloads, short circuit currents, and earth fault currents. When an imbalance is detected they trigger disconnection of the electrical circuits, ensuring protection of circuits and equipment against damage, fires, and risk of electric shock to people.</p><p>Browse the Eaton RCBO range and minimise the risk of electrical hazards in your electrical power distribution systems.</p>

Buy from our range of ABB System M Pro RCBOs. At RS, our aim is to give you the best offers with free next day delivery.

ABB System M Pro RCBOs | RS

<p>ABB System M Pro residual current circuit breakers with over current protection, are a range designed to ensure both protection and efficiency. ABB RCBO's are suitable for applications where protection from both overcurrent and earth leakage is required. ABB's System M Pro range are a series of compact RCBOs that are ideal for areas where space may need to be considered, without compromising the functionality and quality of the product.</p><h2>How do ABB's System M Pro RCBOs work?</h2><p>ABB's range of System M Pro residual circuit breakers, with over current protection, work by enforcing a combined overload and short circuit protection, with protection against earth leakage currents. They ensure the protection of both users and equipment, by disconnecting the circuit as soon as a current becomes unbalanced. ABB's System M Pro range of RCBOs encompasses a vast range of products with varying breaking capacities, that can be used in many applications, including both industrial applications and domestic applications, such as home appliances.</p>

ABB System M Pro RCBOs

How do ABB's System M Pro RCBOs work?

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