What are the 2 types of motor starter circuit?

The two main types of motor starter circuits are Direct-On-Line (DOL) starters and Star-Delta starters. DOL starters apply full voltage to the motor at startup, providing high starting torque but resulting in a high inrush current. Star-Delta starters initially connect the motor in a star configuration to reduce voltage and current during startup, then switch to a delta configuration for normal operation, which helps limit starting current and reduce mechanical stress on the motor.