To maintain rated voltage to load

To operate the auxiliary circuits

To maintain rated main supply voltage

To supply reduced voltage to power circuit

Starts and stop

Runs normally

Runs in star only

Runs in delta only

Mounting MCB

Mounting relays

Path way for electrical wiring and protection

Mounting double deck terminal contactor

Switching ON/OFF the circuit

Protect the circuit from earth fault

Control the circuit based on time delay

Protect the motor from over heating and loading|

To share more loads

To reduce power consumption

To minimise the operating cost

To increase the accuracy of operation