750V DC Contactor manufacturer takes you to understand what constitutes a DC contactor_Vacunm | DC contactor |XGVAC Technology (Shanghai) Co., Ltd.

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750V DC Contactor manufacturer takes you to understand what constitutes a DC contactor

Release time:

2021-11-15 18:00

The 750V DC Contactor manufacturer tells you that the DC contactor is mainly composed of three parts: electromagnetic system, contact system and arc extinguishing device.

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Working principle of DC contactor:
The manufacturer of 750V DC Contactor tells you the coil design in the DC contactor. After the power is turned on, the current flows through the coil to generate the magnetic field. Let the static iron core be rich in current magnet attraction, drive the iron core, and complete the contact function. The manufacturer of 750V DC Contactor tells you that if you frequently close the contact and show an open state, if you use it frequently, the contact is closed and the two are connected to each other. When we turn off the power, the magnet attraction generated by the current through the coil will disappear, and the normally open contacts will be cut off.
How to choose a DC contactor
1. The manufacturer of 750V DC Contactor tells you that the choice of DC contactor needs to be determined according to the type of current required and the weight of the load. At the same time, the main contact and current in the DC contactor need to be calculated by the corresponding formula. The selected contactor product is too complicated to operate and needs to be rotated repeatedly, so the current of the main contact needs to be reduced by one level.
2. The 750V DC Contactor manufacturer tells you that the coil voltage in the DC contactor cannot be equal to the main contact voltage. If you use fewer electrical products and the wiring is simpler, you can use a rated voltage of 22020V. If the wiring is more complicated, more electrical appliances are used at the same time, and the use time is long, you can choose a 110V coil contactor.
3. The manufacturer of 750V DC Contactor tells you how often the DC contactor operates, which is also the number of times it is disconnected. Therefore, if the current is large, it will cause the contact hair of the product to become hot. If the required current is too high, you need to choose a larger DC contactor. You can check the rated voltage of the product on the product's brand name, and then buy the corresponding contactor product.