Difference Between MCB vs MCCB

Hello, friends, I hope you all are doing great. In today’s tutorial, we will discuss the Difference Between MCB and MCCB. The basic difference between MCB and MCCB is that the rating of MCB is eighteen hundred and the interrupt rating of MCCB is between ten thousand to two lac amperes. MCB used to handle fewer value loads and MCCB used to handle large-value loads due to high rating

In today’s post, we will have a detailed look at both MCB and MCCB and compare them to discuss their differences. So let’s get started with the Difference Between MCB & MCCB.

Difference Between MCB & MCCB

MCB

• MCB is a type of circuit breaker that protects the system from high-value current when a load of high range connected to circuitry
• The full form of MCB is Miniature Circuit Breaker.
• It is configured like a switch when opened manually way and closed through this process
• Its rating current should be less than one twenty-five ampere

• It works for overloading conditions not good to use to control surges and high starting currents existing at the motors.
• Its design is such that can control short circuitry errors and then reside for 2.5 ms
• the common types of MCB are B, C, and D
• Its common applications are lightning circuits and less current-consuming loads.
• It is mostly used in homes.
• It can handle faults that occur due to overloading short circuitry

How Circuit Breaker Works

• The operation of all types of circuit breakers is the same. The circuit breaker sens situation occurs due to faults occurring in the circuitry.

• In case of a lower value of voltage, this operation is done by the breaker. Generally heating fact of current is used.
• The circuit breaker in case of high voltage of current is generally configured to the relay to observe the fault in the circuit.
• There is certain power supply is needed like a battery, there  is some breakers that consist of CT, relay, and inner power sources
• After detection of the error circuit breaker connections should be opened for interruption of circuitry it is normally occurs through energy stored in the breaker due to spring.

MCCB

• This circuit breaker protects the components of the system from high temperatures and faulty currents.
• The full form of MCCB is Moulded case circuit breaker.

• Its rating value of sixteen hundred
• It is used in such a circuit that uses a large amount of current.
• It is mostly used in buildings and industries.
• There is a temperature-detecting module linked to this brake that detects temperature when a fault occurs and trips the circuit.

 

Features of MCBs

• This breaker comes with a compact desing and size
• it is made to be used for low-current applications such as about 100 ampers
• it is used for the protection of overload and short circuits.
• It has a fast response to fault conditions
• It can easily reset without the use of a new component
• it used for lighting applications

Applications of MCBs

Features of MCCBs

• It is a larger size than the MCB breaker
• it has high current ratings of about 2500 ampers
• it has an adjustable trip for accurate protection
• It protects from overload, ground fault
• it is best for high-power devices
• It used as the main breaker for the complete system

Applications of MCCBs

• MCCB was used where needed for adjustable tripping. it is used for high-current applications and features for manual operation switches for circuit tripping. it is used for low and high breaking feature requirements especially for industries.

Limitations of MCCBs

• It is more costly than MCB and fuses.
• It gets affected due to corrosion and dust particles
• it is not used for high voltages

MCB vs MCCB

MCB

• its full form is Miniature Circuit Breaker
• It is an automatic switch that works for low-voltage circuits and overcurrent protection
• its current rating is about 125 ampere
• it has high speed turn around
• Its short circuit current rating is 15KA
• it does not have remote operation features.
• interrupting capacity is  1800A less than MCCB
• It has 1, 2, or 3-poles
• It comes with Fixed-tripping circuits
• It is used for Residential, and commercial, applications

MCCB

• MCCB full form is Moulded Case Circuit Breaker
• It used for protection from high current circuits short circuits and overloading
• its current rating is 16A to 1600A
• it has a Slower turn-around time
• Its short circuit current rating is 100kA
• It has 3 poles some breakers have four poles
• It comes with Adjustable or fixed trip characteristics

Faqs

So it is a detailed post about the difference between MCB and MCCB if you have any queries ask in the comments. thanks for reading. Have a good day.