Answer Posted / akash-ncl
ACB- AIR CIRCUIT BREAKER
MCCB-Moulded case circuit breaker
Quenching media is same for both
Protection features which consumer can set will available
with acb i.e o/c,o/c time,sc amps,sc current interrupt time
and ground fault limitings
and lost and most,
short circuit limiting capability Isc is more with acb
selection of acb/mccb depends upon device,fault
level,application and economical calculation since cost
diff is most considerable here
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