In a broad sense, a contactor refers to an electrical appliance that uses the principle of the coil generating a magnetic field when a current is flowing through it to close the contacts and control the load. Contactors are used in electric power, distribution and power consumption occasions.
* Contactors are divided into: DC contactors and AC contactors according to the form of the main contact connection circuit.
* According to the operating mechanism, it is divided into: electromagnetic contactors, permanent magnet contactors.
* According to the number of main contact poles, it can be divided into single-pole, double-pole, three-pole (3 pole contactors), four-pole (4 pole contactors) and five-pole contactors.
* According to the arc extinguishing medium, it can be divided into air contactors and vacuum contactors.
Besides, there are relay contactors, lighting contactors, power contactors, solid state contactors, and definite purpose contactors.
Contactors can usually be used to control motors, and can also be used to control electrical loads such as factory equipment, electric heaters, mother machines and various power units. The contactor can not only close and cut the circuit, but also has the function of low voltage release protection.
As a trusted contactor distributor for years, OKmarts can offer favorable prices, a wide range of brands, fast shipping/delivery, and ample supply. There are many kinds of contactors for sale on our website. There is always one that can meet your needs.
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