What is MPCB? 

MPCB ​​is known as motor protection circuit breaker and is a type of low-voltage circuit breaker. MPCB ​​works similar to MCCB, but the electrical features are designed in such a way that it efficiently protects the motors from various types of faults.

Also, it has an on-off switch to switch the power supply to the motor on or off. It is worth noting that MCCB can also be used to protect motors, but it has limited motor protection functions as compared to MPCB. Some other faults that MPCB can protect the motor from are phase loss, current imbalance and under-voltage fault.

MPCB ​​has a special feature of auto-resetting. This allows the motor to resume its function after a certain period of time after the motor is tripped. MPCB ​​has an adjustable bimetallic strip for overload protection. And this strip can be adjusted to any two set values ​​for overload protection. MPCB ​​can also provide protection against line-to-line faults and line-to-ground faults.