Contactors

The contactor is an electromagnetic two-position device designed to turn on and off high-frequency electrical circuits. A contactor is considered a type of electromagnetic relay. The closing and opening of its contacts is provided by an electromagnetic drive.

The device consists of main and auxiliary contacts, as well as arcing and electromagnetic systems. The closing and opening of the power circuit is carried out by the main contacts, designed for a large number of switching on and off and for continuous passage of the nominal current through them. The main contacts are usually bridge or lever.

Contactors are classified:

*According to the nominal voltage of the main circuit;
*According to the rated current of the main circuit;
*By the number of main poles;
*By type of control coil current;
*According to the nominal voltage of the coil;
*Due to the presence of auxiliary contacts.
The most widely used three-pole AC contactors. Contactors are particularly suitable for frequent starting and stopping of pumps, electric motors and other electrical appliances and equipment. Because of the frequent switching, high demands are placed on these devices in terms of electrical and mechanical durability. It is important to note that contactors do not provide tripping of short-circuit currents, as they only switch rated currents.
With us you will find a wide variety of contactors , as well as additional equipment for them