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MCB is used for high rating &MCB is used for lower
rating.What is technical difference between ACB & MCB?
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Answer Posted / pravesh
the mcb is miniature circuit breaker while acb is air
circuit breaker. in both types the difference is between
the arc quenching in mcb there is no mode of arc quenching
at pressure while in acb the arc quenching is done by high
pressure air through air chutes. mcb are not rated for very
high current while the acb are used for high currents
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