What is MCCB?

What is MCCB?
by

1 Answer

Answer :

MCCB stand for moulded case circuit breaker. It is used for high current protection. MCCB have higher rating than MCB. Suppose MCB have rating up to 10 kA then MCCB will have rating of 100 kA.
by

Related questions

Write applications of each of the following:(i) Fuse (ii) MCB (iii) MCCB.

Description : Write applications of each of the following:(i) Fuse (ii) MCB (iii) MCCB.

Last Answer : i) Applications of fuse:  * Used in domestic installations to provide short circuit protection.  * Used in commercial / Industrial installations to provide overload and short circuit protection.  * Used in ...  * Rectifiers panels,  * U.P.S, Electronic equipment,  * Motors,  * Furnaces

Give the working of MCCB.

Description : Give the working of MCCB.

Last Answer : Working of MCCB: ( Molded Case Circuit Breaker)  * The operating mechanism consisting of lever, spring, contacts etc. is used to open or close the MCCB electrically.  * The arc ... produced by short-circuit current operates the lever to trip the MCCB immediately and open the contacts. 

State the function of : i) MCCB ii) ELCB iii) MCB iv) Switch.

Description : State the function of : i) MCCB ii) ELCB iii) MCB iv) Switch. 

Last Answer : i) MCB: Provide short circuit protection & over load protection to electrical loads.  ii) ELCB: Provides protection by detecting the unsafe magnitudes leakage currents flowing to earth and disconnecting ... rating.  iv) Switch: Make and break the electrical connection to the load manually.

Describe the difference between fuse and MCCB.

Description : Describe the difference between fuse and MCCB.

Last Answer : Sr. No Fuse MCCB 1 Fuse melts / fuses in case of excessive load. MCCB trips off in case of excessive load. 2 Fuse needs to be replaced after every ... Generally protects the load against short-circuit. Generally protects the load against different types of faults.

What is the difference between MCB & MCCB, Where it can be used?

Description : What is the difference between MCB & MCCB, Where it can be used?

Last Answer : A: MCB is miniature circuit breaker which is thermal operated for overload condition and magnetically operated for short circuit protection. It is available in small current rating. MCCB is moulded case ... frequency may be inbuilt. Normally it is used where normal current is more than 100 A.

What is the difference between MCB & MCCB, Where it can be used?

Description : What is the difference between MCB & MCCB, Where it can be used?

Last Answer : 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 ... under frequency may be inbuilt. ▪ Normally it is used where normal current is more than 100A.

What is the meaning of ACB, MCCB, NFB?

Description : What is the meaning of ACB, MCCB, NFB?

Last Answer : Air circuit breaker for 400V higher current ratings. Moulded case circuit breaker for 400V medium current ratings. No Fuse Breaker – 75 A capacity