Single Phase Motor Starter

A single phase motor starter is essentially a switching device made up of incoming and outgoing electrical contacts. This device can either be manually or electrically operated. A hand-operated starter has a button that is used to switch it on or off. These are typically used for tiny motors that cannot be controlled remotely. This single phase motor starter enables motors to restart instantly after a power outage. This immediate motor activation following a power outage may result in excessive currents to the motor, which may damage it. This is why the majority of starters have electrical switches installed.

When it comes to a single phase motor starter that is electrically operated, it uses electromechanical relays to help switch the wires that carry power. These relays are commonly referred to as contactors. When the contactor's coil is activated, an electromagnetic field is created, which pulls the switch contacts together. Once the coil is turned off, the spring system pulls the contacts back into their original position. Typically, a single phase motor starter has push buttons for energizing and de-energizing the coil and operating the contacts. After a power outage, these electrically-powered starters won't start until you press the power button.

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