| MCB | ELCB |
| MCB stands for Miniature Circuit Breaker. | ELCB stands for Earth Leakage Circuit Breaker. |
| It protects against overcurrent. | It protects against earth leakage currents |
| It uses thermal and magnetic mechanisms to detect overcurrent. | It detects imbalance between live and neutral currents. |
| It is less sensitive to current changes. | It is highly sensitive to current changes. |
| It is essential for protecting circuit integrity. | It is essential for protecting human safety. |
| It is used in residential, commercial, and industrial electrical systems | It is primarily residential and commercial, particularly in high-risk areas. |
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