Question

Which of the following is a device that does not switch motor contactors and starters on and off but instead are used to directly start motors?

1) Relay
2) Contactor
3) Starter
4) Direct-On-Line Starter

Answer 1

A Direct-On-Line Starter is used to start motors by applying full voltage directly to the motor terminals without intermediary devices.

Step-by-step explanation:

The device that does not switch motor contactors and starters on and off but instead is used to directly start motors is called a Direct-On-Line Starter. Contactors and starters typically involve additional control circuits to manage the starting processes of motors.

In contrast, a Direct-On-Line Starter applies the full voltage to the motor terminals, starting the motor at once without the use of additional intermediary devices.