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Question
what is difference between mccb,mcb,elcb,pccb
 Question Submitted By :: Electrical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
MCB means miniature circuit breaker--It is thermal &
magnetic trip device operating upto 100 A. It's range is
fixed not selectable.

MCCB means Moulded Case Circuit Breaker---It is operated
upto 1000 A and High voltage MCCB also operates on 1200 A
also...And it's range is selectable..

ELCB means Earth Leakage Circuit breaker---It is operated
on leakage current only..It is not operated on short
circuit or overload current.

RCCB means Residual Current Circuti Breaker---it's Working
principle is same as ELCb..It is also operated on Leakage
current..Main differance between it and ELCB is that it is
also operated on Short circuit current
 
Is This Answer Correct ?    47 Yes 7 No
Shvetang Dave
 
Answer
# 2
MCB mniature ckt breaker, trips when short ckt happens upto
100A
ELCB earth leakage ckt breaker trips whn short ckt happens
& earth leakage happens
MCCB moulded case ckt breaker upto 1000A
RCCB Rasidual case ckt breaker trips both earth leakage &
short ckt avail upto 100A
 
Is This Answer Correct ?    30 Yes 15 No
Lokesh Ranjith
 
 
 
Answer
# 3
Actually RCCB and ELCB have same function, thats tripping on
leakage current(spec is in mA). The recidual device which
trip on leakage current and short ckt is called RCBO.

Above furnished def for mcb n mccb are correct
 
Is This Answer Correct ?    18 Yes 3 No
Sarath Chandran
 
Answer
# 4
mccb-minurate current circuit breaker it used upto 1000A,
it should withstand that capacity
mcb-miniurate ciruit breaker it used upto 63A only for
light load.
elcb-earth leakage circuit breaker it used for any leakage
current in cable, then it should trip under earth fault
 
Is This Answer Correct ?    48 Yes 37 No
Abobakkar
 
Answer
# 5
MCB means Miniature Circuit Breaker-Operated up to 100A circuits

MCCB means Moulded Case Circuit Breaker-up to 1000A

ELCB means Earth Leakage Circuit breaker-operated only for leakage current.

RCCB means Residual Current Circuit Breaker-same as ELCB which is working for both leakage and short circuit.
 
Is This Answer Correct ?    5 Yes 1 No
Jamsheer Koonari
 
Answer
# 6
MCB means miniature circuit breaker--It is thermal &
magnetic trip device operating upto 100 A. It's range is
fixed not selectable.

MCCB means Moulded Case Circuit Breaker---It is operated
upto 1000 A and High voltage MCCB also operates on 1200 A
also...And it's range is not selectable..

ELCB earth leakage ckt breaker trips whn short ckt happens
& earth leakage happens

ELCB earth leakage ckt breaker trips whn short ckt happens
& earth leakage happens
 
Is This Answer Correct ?    4 Yes 7 No
Panchanan Nayak
 
Answer
# 7
mccb :moulded case circuit breaker its operates up to 1200A
and have ratings or have no ratings of current selecting

mcb :miniture circuit breaker operates upto 1000A nad have
selectable current ratings

ELCB means Earth Leakage Circuit breaker---It is operated
on leakage current only..It is not operated on short
circuit or overload current.
 
Is This Answer Correct ?    1 Yes 11 No
Ardo
 

 
 
 
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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why? Siemens 1
HOW DEFINE THE IP FOR ELECTRICAL EQUIPMENT AND WHAT IS THE IP OF PANELS USING IN HAZARDOUS AREA ?   2
Why we get neutral from EB department, if not what will happen if we use earth instead of neutral? what is the result at the time of monsoon or rain with thunder and lighting ?   1
What is the acceptance value of leakage current in HI POT test CPCL 2
what is slip ring induction motor? How it works?   1
how much percentage set in transformer diffrencial relay Bajaj 1
what is the function of a Master trip relay? why is it used ? ABB 3
MCB is used for high rating &MCB is used for lower rating.What is technical difference between ACB & MCB?   6
what is the use of earthing ?   4
1.why is +1+1=+2 why cant it be +3 2.Why is +1*-1=-1 why cant it be something else 3.why are the hilly areas more cooler than the ordinary areas? ThyssenKrupp 5
 
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