What is the difference FUSE, MCB, ELCB, RCCB?

Question

Accepted Answer

FUSE, MCB, ELCB, and RCCB are all electrical protection devices, but they differ in their functions and applications.

FUSE is a simple device that protects electrical circuits from overloading or short-circuiting by melting and breaking the circuit.
MCB (Miniature Circuit Breaker) is an automatic switch that trips and cuts off the power supply when there is an overload or short-circuit.
ELCB (Earth Leakage Circuit Breaker) is a safety device that detects and cuts off the power supply when there is a leakage of current to the earth.
RCCB (Residual Current Circuit Breaker) is a device that detects and cuts off the power supply when there is a difference in the current flowing through the live and neutral wires.
FUSE is a one-time use device, while MCB, ELCB, and RCCB can be reset and reused.
MCB, ELCB, and RCCB are more advanced and provide better protection than FUSE.
MCB, ELCB, and RCCB are commonly used in homes, offices, and industries, while FUSE is mostly used in older electrical systems.
ELCB and RCCB are used for personal safety, while MCB is used for equipment protection.
ELCB and RCCB are mandatory in many countries for electrical safety.

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