400A DC Contactor manufacturers tell you that the contactor is mainly used for motor control. In general industrial production applications, due to the cost and stability advantages of AC multi-thread magnetic induction motors, our motors are all dominated by AC motors. Therefore, most of the contactors used, the main circuit is all communication. Here, most of the electromagnetic coils also communicate.

400A DC Contactor manufacturers tell you that when the control loop must be more stable and reliable than the general communication loop, sometimes the control loop will apply DC. The 400A DC Contactor manufacturer tells you that the DC switching power supply of the control circuit is generally derived from a DC screen containing a rechargeable battery. The switching power supply is reliable and stable, and is generally not easy to lose. 400A DC Contactor manufacturers tell you that the contactor used in this type of circuit, the main circuit is still alternating current, and the electromagnetic coil is direct current.
400A DC Contactor manufacturers tell you that this type of application is used in industrial production, such as petrochemicals, power plants and other places where high stability is required. At this time, people often call them DC contactors. The contactor whose main circuit is DC is less used. Generally, this type of contactor is used in industrial production for DC motors, DC solenoid valves, etc., and is generally used to specify places with extremely high reliability, such as generator set lubrication pumps.
There are very few applications for this type of contactor. 400A DC Contactor manufacturers tell you that because there are very few applications, in addition to DC applications with high main parameters, some actually use AC contactors in the DC main circuit. However, for the contactors for the DC main circuit with high main parameters and unique applications, they may have special products.
Our domestic contactors used to have special DC main circuit products. To sum up, the term DC contactor has some unclear descriptions in itself. 400A DC Contactor manufacturers tell you that because the main circuit DC contactors are very rarely used, and even if they are used, they are usually or basic communication AC contactors (used in the DC main circuit), so most of the bottom pressure control box practitioners, In the spoken English of mechatronics practitioners, when referring to DC contactors, they are usually all contactors whose electromagnetic coils are DC.