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Question
what is the difference between MCB and MCCB?
 Question Submitted By :: Guest
I also faced this Question!!     Rank Answer Posted By  
 
  Re: what is the difference between MCB and MCCB?
Answer
# 1
MCB is miniature circuit breaker which is a small
electrical circuit breaker used in small electrical systems
for protection against conditions such as overload or short-
circuit.

MCCB is moulded case circuit breaker which can be operated
upto currents of 1000 A.
 
Is This Answer Correct ?    21 Yes 0 No
K
 
  Re: what is the difference between MCB and MCCB?
Answer
# 2
MCCB is moulded case circuit breaker which can be operated
upto currents of 1600A.
 
Is This Answer Correct ?    2 Yes 1 No
Suman
 
 
 
  Re: what is the difference between MCB and MCCB?
Answer
# 3
mcb-miniature circuit breaker its bi metal trip type cannot able to co-ordinate the relays,small size,using for small loads.

Mccb-Moulded case circuit breaker can able to co-ordinate relays,here trip coil is separately provided for tripping action,large size and using for heavy duty
 
Is This Answer Correct ?    3 Yes 0 No
Muthuvel
 
  Re: what is the difference between MCB and MCCB?
Answer
# 4
unlike MCB the
MCCB can be used for short circuit...overload and earth fault as well and it can be manufactured on demand for any amount of current
 
Is This Answer Correct ?    0 Yes 0 No
Sam
 

 
 
 
Other Electrical Engineering Interview Questions
 
  Question Asked @ Answers
 
Is 3C x 2.5 Sqmm Cable can withstand 40Amp Starting current? If Yes then specify your ans. NTPC 2
what happen to a dc series motor if it given as ac supply accidentaly   2
why we somewhere use ryb phase sequance, somewhere use uvw, and somewhere abc??   4
what is the ka rating of mccb. and how it is decided . Napino 2
An 11kv system consisting of an underground cable to a sub station about 300 meters away was shut down for about 10 hrs. On energising, it tripped off on earth fault about 10---20 mins later 6 times but since than it is not tripping.its already 3 weeks now. The SPAJ was found to be fine. what could be the cause.No test had been done to determine the cause of the trippings till now because of demand.   2
wat is the importance of reactive power in power generation.....if it is zero means wat will happen to system........ Jindal 22
over frequency is the protection of turbine or alternator?   2
why breather cap filled with oil?   6
what role does a star point or neutral point play in a star connected system?   3
what is the differance of acb and mcb and mccb MacAir 12
wht is the difference between volatge and wattage ? how can it be converted ? (like 15w = 6v ) like tht... ? actually what tht means ?   3
what is the difference between synchoronous and alternator and induction motor and generator   2
 
For more Electrical Engineering Interview Questions Click Here 
 
 
 
 
 


   
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