Month: April 2016

Contactor – Construction, Operation, Application and Selection

A contactor is a switching device, widely used for the switching of motors, capacitors (for power factor correction), and lights. As the name indicates it is used to make or break contacts like an ordinary on-off switch. The only difference is that the contactors have an electromagnet that holds the contacts when energized whereas switches … Read more

Difference between MPCB and MCCB

Motor Protection Circuit Breakers and Moulded Case Circuit Breakers and are devices used to open and close a circuit manually and interrupt the circuit automatically on the occurrence of faults. MPCB and MCCB are used to protect against overload and short circuits. The application of Motor Protection Circuit Breaker is entirely different from that of … Read more