Motor Starters and Protection Components
Motor starters are key electromechanical switches. They start and stop motors, providing overload protection - a feature absent in simpler relays. This dual role means they switch power and diligently safeguard the motor from overloads or faults.
Available in various ratings for AC motors, they manage power and prevent high starting currents.
Advantages of Using Motor Starters
- Prevents high starting currents, ensuring smooth, controlled acceleration.
- Guards against short-circuit and overload.
- Automatic shutdown upon power loss.
- Soft starters equipped with microprocessors provide advanced energy monitoring capabilities.
How a Motor Starter Works
A motor starter consists of two main components: a contactor, which completes the motor circuit, and an overload relay, which continuously monitors the current.
If the motor exceeds its safe capacity, the overload relay opens the control circuit, shutting off the motor to prevent damage.