What device is used to protect against leakage current and prevent electric shocks?
- AMCB (Miniature Circuit Breaker)
- BFuse
- CTransformer
- DRCCB (Residual Current Circuit Breaker)Correct
Solution
Concept
RCCB
Step-by-step solution
1. An RCCB trips on earth leakage current. 2. It protects against electric shock.
Explanation
MCBs and fuses protect against overload and short circuit, not leakage.
Why the other options are wrong
MCB, fuse and transformer do not detect leakage.
Shortcut
Shock protection = RCCB.
Correct answer: D) RCCB (Residual Current Circuit Breaker)