Answer / jessy

All these are circuit breakers of different Current Ranges.

mcb is used for low current ranges, avaiable uo to 63A
mccb is used for medium current ranges up to 3200 A
acb is used for more higher ratings.

Answer / viswanathan.k

MCB - Miniature circuit breaker is used from 1A to 100 Amps
rating. which is only magentic tripping device
MCCB - Moulded circuit breaker is used from 32amps to
1600amps ( combination of both thermal and magentic
tripping)
ACB - Air circuit breaker is used from 630amps to 5000amps
capacity - in older version only thermal tripping only. now
a days it is combination of both thermal and magnetic
tripping

Answer / prasad

there are so may circuit breakers, depends upon their ratings
we use up to 63A as mcb and above this current we use mccb or
acb.

acb means air circuit breaker

Answer / mani777

mcb.......o.5 to 63amp
mccb......upto ...1600 amp
acb(air circuit breaker) used in big transformer...hence
for more amps

Answer / ram

please correct long form of mccb, it is moulded case
circuit breaker.
all are the different types of ckt bkrs & are used
according to the load in amps.

Answer / dan

MCB - miniture circuit breaker
MCCB - molded case circuit breaker
acb - air circuit breaker

MCB are upto ~60 amp
MCCB are from 60 amp to thousands amp
ACB are for huge power stations thousands of amps.

Answer / deepak mishra

mcb-miniature circuit breaker- 6amp to 63amp
mccb-moulded case circuit breaker- upto 1600amp
acb- air circuit breaker- above 1600amp
regards deepak

Answer / marc

Hello.
Does someone know what is AACB ? Amp Air Circuit Breaker.
What is the difference with ACB ?

Thank you

Answer / shiva.sh

mcb-miniature circuit breaker- 6amp to 100 amp
mccb-moulded case circuit breaker- upto 1000 amp
acb- air circuit breaker- above 6000 amp

Answer / ankush dhiman

mcb (miniature ckt. breaker) is used for low current
ranges, avaiable uo to 63A
mccb (miniature current ckt breaker )is used for medium
current ranges up to 800 A
acb (air ckt breaker)is used for more higher ratings.

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