Electricity: Class 10 Science Q&A · Page 15

MCB Full Form

MCB stands for Miniature Circuit Breaker, an automatically operated electrical switch designed to protect electrical circuits from damage caused by overcurrent (excessive current flow due to overload or short circuit). MCBs have largely replaced traditional fuses in modern electrical installations—homes, offices, industries—because they offer superior safety, convenience, and reusability. Unlike fuses that must be replaced after "blowing," MCBs can simply be reset after tripping,