contactor
The contactor is the most important element in the control circuits. It can not be without a control circuit. Therefore, it must be understood well and understood how to buy and connect it in the circuit.
Let us first know the meaning of automatic control or what is known as classic control
The difference between manual control and automatic control
- Hand control: such as lighting a bulb or turning on the TV or the like here when pressing one of the buttons working lamp
- Automatic control: in which the circuit is designed to do a certain action when something else happens
For example: When a motor is working and a certain duration continues, after that period another motor is working
Or when the temperature of a thing or liquid level reaches a certain level .. One of the motors works automatically ... and many other ideas and applications actually used in factories and workshops
The interior of the connector
1 - Iron heart
2. Basic points
3. Help points