what is meant by MCB and MCCB? and what its full form?

Categories >> Engineering >> Electrical Engineering
Suggest New Category

Question Posted / fmcool75

7 Answers
48991 Views
Bajaj, JHM Hotels, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

what is meant by MCB and MCCB? and what its full form?..

Answer / nilkanth tailor

MCB stands for MINIATURE CIRCUIT BREAKER with rated current
below 100 amperes whereas MCCB stands for MOULDED CASE
CIRCUIT BREAKER with rated current from 10 amperes to 2000
ampers.MCB has breaking capacity upto 10kA, MCCB has
breaking capacity above 10kA.

Is This Answer Correct ?

143 Yes

17 No

what is meant by MCB and MCCB? and what its full form?..

Answer / sms

MCB is miniature circuit breaker which is thermal oprated
and use for short circuit protection in small current
rating circuit. MCCB is moulded case circuit breaker and is
thermal operated for over load current and magnetic
operation for instant trip in short circuit condition.
Under voltage and under frequency may be inbuilt. Normally
it is used where normal current is more than 100A.

Is This Answer Correct ?

70 Yes

6 No

what is meant by MCB and MCCB? and what its full form?..

Answer / d.sathya

MCB ( miniutare Circuit Breaker )

Is This Answer Correct ?

52 Yes

6 No

what is meant by MCB and MCCB? and what its full form?..

Answer / thanigai1984

MCB - MINIATURE CIRCUIT BREAKER with rated current
below 100 amperes whereas MCCB - MOULDED CASE
CIRCUIT BREAKER with rated current from 10 amperes to 2000
ampers.

Is This Answer Correct ?

43 Yes

12 No

what is meant by MCB and MCCB? and what its full form?..

Answer / faizal

MCB - miniature circuit breaker

1) we can use it upto 100A
2) thermally operated and used for short circuit/ overload protection
3) trip current / trip characteristics not adjustable it is fixed

MCCB - moulded case circuit breaker

1) we can use it above 100A
2) used for short circuit/ overload protection
3) thermal trip protection for over load current
4) magnetic trip protection for short circuit ( instant operation )
5) trip current / trip characteristics is adjustable

Is This Answer Correct ?

25 Yes

6 No

what is meant by MCB and MCCB? and what its full form?..

Answer / nag

mcb mean miniature circuit breaker and mccb mean moulded
case circuit breaker .mcb is used for upto 16A and mccb
used for above 16A .it means it is capable for higher
currents .

Is This Answer Correct ?

44 Yes

33 No

what is meant by MCB and MCCB? and what its full form?..

Answer / sandeep durga

Miniature circuit breaker

Is This Answer Correct ?

1 Yes

0 No

Post New Answer

More Electrical Engineering Interview Questions

what is rating providing of contactor,relay,fuse unit for motor output power

2 Answers

what is the difference between Resistance VS capacitance

2 Answers Jindal,

What does Magnetic Neutral Axis

2 Answers Eskom, Genus, Lanco,

1.What is the proper definition of power system stability? 2.some times a blue spark is visible in the secondary side of a distribution transformer at the contact position of bushings and fuse wire,why?

1 Answers

what is the maximum current rating in india for home?

3 Answers

HOW TO CALLICULATE RESITENCE,REACTANCE AND IMPEDENCE VOLTGE OF TRANSFORMER 13.33 KVA 144/240 VOLTS 93/56 A WITH FORMULA

0 Answers ISRO,

Why dc Supply used in Control circuit.

12 Answers HP,

slor cell made?

1 Answers

whatis mean by voltage?

7 Answers

In Air circuit breaker LSIG protection unit is used. Without fault in cables (2 runs 3Cx150Sq.mm Copper, 1Kv grade, XPLE armored cable IR value is more than 550Mohm @ 500V Megger) and load section Long time Overcurrent protection is triggers and trips the unit. We changed LSIG protection with new factory tested unit. Even then fault is persisting. Please suggest the possible causes

0 Answers

how we calculate capacitor bank mvar for 11 kv distribution networ , and i need releation between capacitor bank with voltage, frequency, current, pf

2 Answers

What happens when the field of an alternator connected to infinite bus is suddenly removed?

3 Answers

For more Electrical Engineering Interview Questions Click Here