The foundation of many electrical control solutions is motor controls, specifically motor starters. This is the first in a series of articles about motor starters. Through these articles you will gain an understanding of what is a motor starter, why we use motor starters, how a motor starter works, and the types of motor starters.
WHAT IS A MOTOR STARTER?
A motor starter is an electrical component designed to start and stop a motor safely. Like a relay, a motor starter switches power on and off and unlike a relay also provides overcurrent and low voltage protection.
A motor starter has four main functions:
- 1.Start a motor safely.
- 2.Stop a motor safely.
- 3.Reverse the direction of a motor.
- 4.Provide low voltage and overcurrent protection to the motor.
The motor starter is generally comprised of two components that work together to control and protect the motor.
- Electrical contactor: which starts and stops the power supply to the motor by making or breaking the contact terminals.
- Overload relay: which monitors the current for an overload condition.
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