Circuit breakers are a type of electrical switch that is designed to protect the electrical system from damage due to overloads or short circuits. They are an important part of any electrical system, and they come in a variety of types and sizes. The four main types of circuit breakers are MCB, MCCB, RCBO, and RCCB. Each type of circuit breaker offers different levels of protection and is suitable for different applications.

AC MCB

AC Miniature Circuit Breaker(AC MCB)

 

MCB stands for Miniature Circuit Breaker. It is a small, low-voltage, single-pole circuit breaker designed to protect small electrical systems from overloads and short circuits. It is usually used in residential and commercial applications. MCBs are typically used in circuits where the load is not more than 10A and the voltage is 230V.

DC MCCB

DC MCCB

MCCB stands for Molded Case Circuit Breaker. It is a medium-voltage, three-pole circuit breaker designed for industrial and commercial applications. MCCBs are typically used in circuits where the load is more than 10A and the voltage is up to 1000V. These circuit breakers offer a high level of protection and are suitable for high-load applications.

AC RCBO

AC RCBO

RCBO stands for Residual Current Clamping Overcurrent Breaker. It is a combination of an MCB and an RCD (residual current device). It provides both overload and short-circuit protection and is also used in residential and commercial applications. RCBOs are typically used in circuits where the load is not more than 10A and the voltage is 230V.

AC RCCB

AC RCCB

RCCB stands for Residual Current Circuit Breaker. It is a type of circuit breaker that is designed to protect people from electric shock. It is typically used in circuits where the load is more than 10A and the voltage is up to 1000V. RCCBs are designed to detect and trip when a current imbalance is detected, which can indicate an electric shock.

In summary, MCB, MCCB, RCBO and RCCB circuit breakers are all types of electrical switches that are used to protect the electrical system from damage due to overloads or short circuits. The MCB is a small, low-voltage, single-pole breaker, while the MCCB is a medium-voltage, three-pole breaker. The RCBO is a combination of an MCB and an RCD and the RCCB is designed to detect and trip when a current imbalance is detected. Each type of circuit breaker offers different levels of protection and is suitable for different applications.