Dc contactor type and its USES

Publisher： Apollo / 2021-07-09/ Views：1079

Types and applications of DC contactors:

The contactor is divided into AC contactor (working voltage AC) and DC contactor (working voltage DC), used in power engineering, power distribution equipment and electrical places. In theory, contactor refers to the use of magnetic coil to generate electromagnetic field through current in the manufacturing process, so that the circuit breaker is closed, so as to realize the operation of the load of household appliances.

From the perspective of the electrotechnics due to quickly disconnect communication ac and dc main control circuit, and can operate frequently access and large current power line equipment (800 a), so as to manipulate the other half is often applied to motor device, can also be used to manipulate the factory machinery and equipment, electric water heater, such as electric power load, not only can be used to operate the power supply, dc contactor But it can also be used to operate factory machinery and equipment. AC contactor is one of the key components of process control system, which is suitable for frequent practical operation and remote operation. What are the requirements for the power of the DC contactor for soft starters?

Direct contactor

The key is to do industrial control with DC contactor, the general load to the motor is more common, there may be some electric heaters, do double power conversion and other places to apply. The conduction of the contactor is maintained in the operating state according to the working voltage of the magnetic coil. According to the different structure of arc extinguishing, it can be divided into vacuum contactor and ordinary contactor. According to the different operating voltage, it can be divided into DC contactor and AC contactor. The key part of DC contactor is the auxiliary contact.

In industrial products, there are many types and specifications of DC contactors. When 5A-1000A is used, the current size is different. Its use is very common, and it has good characteristics and functions in various fields.