Full-voltage, single-speed motor starters: Single-speed squirrel-cage motors have starters that fall into two categories: full-voltage or across-the-line starters; and reduced-voltage starters.
The NEC defines a controller in a few different ways. In Art. 100, a controller is described as “a device or group of devices that serves to govern, in some predetermined manner, the electric power ...
Motor Starter is a device which is connected in series with the motor to decrease its starting current and then increase it as motor starts rotating gradually. It is an electrically operated switch ...