MCB (Micro Circuit Breaker): This is a small circuit breaker with a rated current of 6A to 63A and a short circuit current of 3, 6, and 10KA. MCB can be 1, 2, 3, or 4 pole type. MCB is usually installed on small load lines, usually from the distribution box to the power consuming equipment.<br>Residual Current Circuit Breaker (RCCB): This is a type of CB that not only has closed circuit and protection functions like ordinary CBs, but also has anti leakage function, which can protect personnel safety in the event of electrical equipment leakage. The rated leakage current is 10mA, 30mA, and 300mA.
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