Question

what are the properties of MCB
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Answer 1

$\huge \color{pink}Answer$

As like Class Z MCBs, these are also highly sensitive to short circuit and are used for the protection of semiconductor devices

Answer 2

Answer:

Miniature Circuit Breakers (MCB) MCBs provide overcurrent and short-circuit protection only and are unable to detect residual current (earth leakage current) unless it is large enough to be classed as an overload or short circuit.