How to use AC contactor
Date:2024-03-29 Click:66
How to use AC contactor
1: Generally, a three-phase contactor has a total of 8 points, three inputs, three outputs, and two control points. The output and input correspond to each other and can be easily seen. If you want to add self-locking, you also need to connect a line from a terminal of the output point to the control point.
2: First of all, you should know the principle of AC contactor. It uses an external power source to apply to the coil to generate an electromagnetic field. When power is applied, the contact point is disconnected. After knowing the principle, you should figure out the contacts of the external power supply, which are the two contacts of the coil, usually at the bottom of the contactor, and on each side. The other inputs and outputs are generally on the upper part and can be identified at a glance. Also pay attention to the voltage of the external power supply (220V or 380V), which is usually marked. And pay attention to whether the contact point is normally closed or normally open. If there is self-locking control, just adjust the circuit according to the principle.
1: Generally, a three-phase contactor has a total of 8 points, three inputs, three outputs, and two control points. The output and input correspond to each other and can be easily seen. If you want to add self-locking, you also need to connect a line from a terminal of the output point to the control point.
2: First of all, you should know the principle of AC contactor. It uses an external power source to apply to the coil to generate an electromagnetic field. When power is applied, the contact point is disconnected. After knowing the principle, you should figure out the contacts of the external power supply, which are the two contacts of the coil, usually at the bottom of the contactor, and on each side. The other inputs and outputs are generally on the upper part and can be identified at a glance. Also pay attention to the voltage of the external power supply (220V or 380V), which is usually marked. And pay attention to whether the contact point is normally closed or normally open. If there is self-locking control, just adjust the circuit according to the principle.