The contactor is an important electrical component that uses the magnetic force of the electromagnet and the reaction force of the spring to control the operation of the circuit. The contactor is generally composed of an electromagnetic mechanism, a contact system, an arc extinguishing device, a spring and a bracket, and is divided into an AC pressure contactor and a DC contactor according to whether the AC current or the DC current is controlled. The main difference between the two types is their method of extinguishing the arc.
AC pressure contactors use mechanical means such as a switch or plunger to make and break a connection with their contacts, while DC contactors use special coils that can be powered by a low supply voltage to create a controlled opening or closing connection. In both cases, auxiliary contacts are also available for additional operator control.
The reliable switching performance provided by these components allows them to be used in a wide variety of applications such as motor starters, heating appliance controls, and even home appliances such as washing machines and refrigerators. Professionals must ensure that all safety requirements are met when installing AC pressure contactors or DC contactors, as they can be dangerous if used incorrectly or handled incorrectly.
In summary, properly installed high-quality AC pressure contactors and DC contactors play an important role in keeping our daily lives running smoothly while providing us with safe operation from potentially dangerous electrical currents.
Post time: Mar-02-2023
