3) Which duty cycle of contactor used for the application of Crane,Lift,and hoist in AC?

4) Which factor is to be considered while designing the control panel dimensions?

5) Which is the amount of additional load to be considered before selecting the protective accessories for a motor in control panel?

6) What type of switch unsuitable for portable (or) mobile devices?

7) which is used with ammeter to measure high current in panel board?