A circuit breaker is a switching device that is used to disconnect the power supply in an electrical network when there is an overload current or current leakage. Miniature Circuit Breakers (MCBs) are among the most commonly used circuit breakers in home environments for overload and short circuit protection; Residual Current Circuit Breaker (RCCB), prevent electric shocks when there is an earth fault; and Air Circuit Breakers (ACB), which are ideal for high-voltage systems. Familiarity of these kinds assists in meeting the purpose of installing the circuit breaker, maintaining safety in electrical installations.