Difference between MCB and MCCB
An electrical circuit breaker is an automatically operated electrical switch that is designed to shield the circuit from harm brought about by abundance flow from an over-burden or short circuit.
Circuit breakers are made in fluctuating sizes, from little gadgets that secure low-current circuits or individual family apparatus, up to enormous switchgear intended to ensure high voltage circuits supporting an entire city.
MCB and MCCB are one such circuit which has key differences that make to perform specific jobs. MCB stands for Miniature Circuit Breaker while MCCB stands for Molded Case Circuit Breaker.
The major differences between MCB and MCCB are as given below:
>> Definition: MCB refers to the type of switch that protects the electrical equipment from overloaded current while MCCB refers to the switch that provides protection to the electrical equipment from faulty current and high temperature.
>> Current Rating: MCBs rated current is not more than 100A and has an interrupting rating range also known as breaking capacity of under 18000 amps. On the other hand, the rated current of MCCB is up to 1000A with breaking capacity ranging from around 10,000 amps to 200,000 amps.
>> Trip Characteristic: MCCB comes with adjustable trip characteristics which provide from 10A to 2500A, whichever is necessary. While trip characteristics in MCB may not be adjusted as this circuit breaker basically belongs to low capacity circuits.
>> Power Capacities: MCB is generally used for low-power equipment like wiring at home or small electronic devices. On the other hand, MCCB is used for high power equipment for commercial or industrial purposes.
>> Type: To meet the standards of IEC 947, MCB and MCCB are categorized under low-voltage circuit breakers.
>> Remote On/ Off: The remote on / off is not possible in MCB whereas it is possible in MCCB by the use of shunt wire.
