What is the difference between MCCB & ACB & VCB ?
What is the Difference Between MCCB & ACB & VCB ?
|MCCB is stands for Moulded
Case Circuit Breaker.
|ACB is stands for Air Circuit Breaker.||VCB is stands for Vacuum Circuit Breaker.|
|The moulded case circuit breaker
which use ark quenching device as
AIR which is used upto 500 Amps only.
|The Air Circuit Breaker which use
quenching device as air and
used upto 3000 Amps at
|The Vaccum Circuit Breaker which use ark quenching device as a vaccum and used for 415 volts.6.6 KV,11 KV,33 KV,132 KV,220 KV also.|
|Thermomagnetic operaton-For large
surges in ct- In distribution
responding to less extreme but
conditions-applicable for low voltages.
|Low volt power cb-trip
characteristics r adjustable-air
s the arc quenching medium
applicable upto 440V.
|Medium volt power cb-trip char. Adjustable-mechanical sys. used for trip & open-Vaccuum s the arc quenching medium-applicable upto 36kV.|
|MCCB s the used low rating Lt pannel.||ACB s the used high rating Lt pannel.||VCB s the used high rating Ht pannel.|
|MCCB is used for load purpose and
is should used up to 1200-1500A only.
|ACB is used for low tension (LT)
panel it should carry up to
4000A and more.
|VCB is used for high tension (HT) panel it means carry 11KV and low amps rating it can withstand at long time at high Voltage also.|