Answer / shvetang dave

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

Answer / sarath chandran

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

Answer / lokesh ranjith

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

Answer / abobakkar

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

Answer / jamsheer koonari

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.

Answer / panchanan nayak

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

Answer / ardo

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.

On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

3 Answers   Ambe Consultancy, Siemens,

Which capacitor is preferred for high voltage and frequency?

0 Answers  

How is Grounding or Earthing achieved in Planes and Automobiles?

3 Answers   ABC,

What is the purpose of Rotor earth fault relay and How to test the Rotor earth fault relay in generators and What is the procedure?.

1 Answers  

Why in Digital Megger for finding Insulation resistance,-ve is applied to core or conductor and +ve is applied to ground.

1 Answers   ACC,

What are safety device in vcb and acb?

0 Answers   IOCL, L Usine Fashion,

Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV,20kV, 30kV?

2 Answers   Bhel,

DIFFERANCE BETWEEN function of ELCB? function of rccb? function of mccb? function of acb? function of mcb?

4 Answers   MacAir, Sajas,

A 30KW motor running at 1450 rpm draws 56A, how would you determine if this is correct or not?

3 Answers  

Why the suply frequency in INDIA is 50HZ

5 Answers   HCL,

What are the applications of autotransformers?

0 Answers  

How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540

0 Answers