Why MPCB (Motor Protection Circuit Breaker) is used?
Motor Protection Circuit Breakers (MPCBs), as the name implies, are specialized electro mechanical devices used with motor circuits to perform important function I.e. isolation, motor protection and control of motor (ON/OFF) It also provide protection against various electrical faults e.g. Short circuits line to ground and line to line of faults. The main function of MPCB is to trip the motor when it draws current exceeding the set limits. The current limit can be set manually. The other important feature of MPCB is to reconnect the motor automatically to the supply after the fault elimination MPCBs protects motor against overload and short circuit faults. The MPCBs are provided with bi-metallic strips for thermal overload protection and magnetic coil for short circuit protection MPCBs also protects motors against phase imbalance. In case of phase imbalance, the motor does not work properly, resulting in overheating. With the use of MPCB, the motor automati...