What is difference between MCB,MCCB,ELCB and RCCB? Brief description and why RC

What is difference between MCB,MCCB,ELCB and RCCB?
Brief description and why RCCB is costly?

Question Posted / ankitrawat

3 Answers
9839 Views
JLL, I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

What is difference between MCB,MCCB,ELCB and RCCB? Brief description and why RCCB is costly?..

Answer / waqa ahmed

mcb
miniature circuit breaker
mccb
moulded cage circuit breaker
elcb
earth leakage circuit breaker

Is This Answer Correct ?

4 Yes

0 No

What is difference between MCB,MCCB,ELCB and RCCB? Brief description and why RCCB is costly?..

Answer / g.t.manikandan

MCB is miniature circuit breaker which is thermal operated and use for short circuit protection in small current rating circuit,Normally it is used where normal current is less than 100A,
MCCB moulded case circuit breaker and is thermal operated for over load current and magnetic operation for instant trip in short circuit condition,Normally it is used where normal current is more than 100A.
RCCB is used to detect earth leakage fault.once there is a ground fault in the load side,current from phase will directly pass through earth and it will not return through netural through RCCB,that means one side current is going and not returning and hence beacuse of this difference in current RCCB will trip and it will safe guard the other circuits for fault loads,that why cost of RCCB also costly

Is This Answer Correct ?

3 Yes

0 No

What is difference between MCB,MCCB,ELCB and RCCB? Brief description and why RCCB is costly?..

Answer / dixit

mcb
is a circuit protecting device which has a definite current rating which protects selective rating of the MCB which we choose.

MCCB
is also a circuit protective device we can change minimum to maxium value of current rating which can select .

ELCB

which sens the leakage current if any in the circuit,and trip the circuit immediatly

Is This Answer Correct ?

3 Yes

1 No

Post New Answer

More Electrical Engineering Interview Questions

which one cable has a more resistance.A big or small

2 Answers

what is conductor constant of raccun conductor

0 Answers CSPDCL-Chhattisgarh State Power Distribution Company Limited,

A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these

2 Answers

As a electrical engineer.. what are the basic norms should follow in transformer oil testing.. 1.What is the Electrode type? 2.How long time you will give for oil testing?

0 Answers NAL,

ratings of lightning arrester

0 Answers Bajaj,

Why all voltage levels are the multiples of 11KV?

10 Answers KSEB,

What is motor type DG starter

5 Answers EFS, HDFC,

how much cuurrent flow through human body effected ????

7 Answers Divis Laboratories, ICSA,

advantages & disadvantages of Lagging and leading power factor .

0 Answers KMSC,

HOW CAN WE DECIDE THE SUPPLY VOLTAGE FOR MOTOR ACCORDING TO ITS RATING(IF ANYONE KNOWS GIVE IT WITH EXAMPLE AND ITS CALCULATIONS)