MCB, MCCB, RCCB, and ELCB are circuit breakers but all of them are designed for serving a specific purpose. Before knowing about the differences among all, let’s get to know about them a little bit.
What is MCB?
MCB Stands for Miniature Circuit Breaker. It automatically switches OFF the electrical circuit during any abnormal condition in the electrical network such as overload & short circuit conditions.
However, the fuse may sense these conditions but it has to be replaced though MCB can be reset. The MCB is an electromechanical device that guards the electric wires &electrical load from overcurrent to avoid any kind of fire or electrical hazards. Handling MCB is quite safe and it quickly restores the supply.
What is MCCB
The MCCB protects against overload, and short circuit faults and is also used for switching the circuits
MCCB is a Molded Case Circuit Breaker. It is another type of electrical protection device that is used when the load current exceeds the limit of a miniature circuit breaker.
The MCCB protects against overload, and short circuit faults and is also used for switching the circuits. It can be used for higher current ratings and fault levels even in domestic applications.
Difference between MCB and MCCB
What is RCCB
RCCB is a Residual Current Circuit Breaker. This residual current device is an electrical wiring device that disconnects the circuit whenever there is leakage of current flow through the Human body or the current is not balanced between the phase conductor.
It is the safest device to detect and trip against electrical leakage currents, thus ensuring protection against electric shock caused by direct contact. RCCB is generally used in series with an MCB which protects them from over current and short circuit current.
What is ELCB
ELCB have the same function as RCCB but are voltage sensor devices
ELCB stands for Earth Leakage Circuit Breaker. They have the same function as RCCB but are voltage sensor devices. However, this is an old technology & is not in common use.
RCCB being a currently sensitive device has a better advantage over ELCB.
Difference between RCCB and ELCB
