• Circuit Breakers: A Comprehensive Guide for customers in Nigeria
    • 16 Jun 2023

    Circuit Breakers: A Comprehensive Guide for customers in Nigeria

    Circuit breakers are essential components of electrical systems that help prevent electrical overloads and short circuits. In Nigeria, where electrical safety is a significant concern, understanding circuit breakers' function, types, and benefits is crucial. In this article, we will explore everything a customer in Nigeria needs to know about circuit breakers.


    • A circuit breaker is a safety device that automatically switches off electrical power when it detects a fault or overload in an electrical circuit.

    • It is a critical component in any electrical system as it helps to prevent electrical fires, electrocution, and damage to electrical equipment.

    • In this article, we will be discussing how circuit breakers work, the types of circuit breakers available, their different applications and benefits in Nigeria.

    How Circuit Breakers Work

    • Circuit breakers work by monitoring the flow of electrical current through a circuit.

    • When the current exceeds a certain level, the circuit breaker trips and interrupts the flow of electricity, preventing any damage to the circuit or electrical equipment.

    • Circuit breakers can be manually operated or automated and can be reset after they trip.

    Types of Circuit Breakers

    • There are several types of circuit breakers available, including air circuit breakers, moulded case circuit breakers, miniature circuit breakers, and residual current circuit breakers.

    • Air circuit breakers (ACB) are typically used in high-voltage applications and can handle large amounts of current.

    • Moulded case circuit breakers (MCCB) are commonly used in low-voltage applications and can provide short circuit and overload protection.

    • Miniature circuit breakers (MCB) are used in residential and commercial settings to protect individual circuits.

    • Residual current circuit breakers (RCCB) are used to protect against ground faults and are typically installed in wet areas, such as kitchens and bathrooms.

    Different Types of Users

    • Circuit breakers are used by a wide range of users in Nigeria, including homeowners, businesses, and industries.

    • Homeowners use circuit breakers to protect their homes from electrical fires and to prevent damage to their electrical appliances and devices.

    • Businesses use circuit breakers to protect their equipment and to ensure that their operations are not interrupted by electrical faults or failures.

    • Industries use circuit breakers in their electrical systems to ensure the safety of their workers and to prevent damage to their machinery.

    Benefits of Installation

    • Installing circuit breakers has several benefits, including increased safety, protection of electrical equipment, and reduced downtime.

    • By interrupting the flow of electricity when there is an overload or fault in the circuit, circuit breakers help to prevent electrical fires and electrocution.

    • Circuit breakers also protect electrical equipment from damage caused by power surges and short circuits, which can extend the lifespan of the equipment.

    • Finally, by reducing downtime caused by electrical faults or failures, circuit breakers can help to increase productivity and reduce costs.


    Circuit breakers are critical components of electrical systems, and their importance cannot be overstated. By understanding their function, types, and benefits, customers in Nigeria can make informed decisions when it comes to circuit breaker installation and maintenance. Remember to consult with a professional electrician for proper installation and maintenance of your circuit breakers.

    Mikano International Ltd through its Power Division has been a leading provider of electrical solutions in Nigeria in partnership with global electrical brands - ABB, Schneider and Siemens while offering its own brand of high quality electrical products to meet various needs. For more details on all our available circuit breakers, please call 07001234567 or email info@mikano-intl.com.