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What is the difference between MCB and Earth MCB? What is
the working principal of MCB?
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Answer Posted / mandeep kumar
Mcb is used in protection against shortcircuit & Overload
current where Earth MCB is used for leakage current.We may
say leakage current as Residual current.Residual means
difference of two currents.MCB works on the principal of
Cantilever Principal & Electromagnetic Induction .
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