A Contactor (Contactor) refers to an industrial electrical appliance that uses a coil flowing through a current current to generate a magnetic field that closes the contact to control the load. The contactor is composed of an electromagnetic system (iron core, static iron core, electromagnetic coil) contact system (normally open contact and normally closed contact) and an arc extinguishing device. The principle is that when the electromagnetic coil of the contactor is energized, it will produce a very strong magnetic field, so that the static iron core produces electromagnetic suction to attract the armature, and drive the contact action: often close the contact disconnected; often open the contact closed, the two are linked. When the coil is powered off, the electromagnetic suction disappears, and the armature is released under the action of the release spring to make the contact recovery: normally closed contact closed; normally open contact disconnected.
As a common and basic product in low-voltage electrical products, contactor is widely used in OEM machinery supporting, electric power, construction / real estate, metallurgy, petrochemical and other industries. The chemical industry operates well, especially the coal chemical industry and fine chemical industry grew greatly. With the improvement of environmental protection requirements, the demand for low-voltage contactors of environmental protection-related products has also increased significantly. The national investment in infrastructure construction and the new energy industry, and the development of the rail transit industry, wind power and nuclear power industry will also greatly drive the low-voltage contactors. It is for these reasons that drives the contactor market in China, or at about 15.2 billion yuan in 2018.
Low-voltage contactor, as a traditional low-voltage electrical products, has been very mature. The manufacturing process of low voltage contactor products itself is not complicated, with relatively low technical content, coupled with sufficient market demand, and has produced a large number of low voltage contactors with different load currents also show a great difference, covering the range from ten yuan to several thousand yuan. If enterprises want to enter the low-voltage contactor market and benefit from it, they need to have a full understanding of the current mainland low-voltage contactor market, including the main application industries, various industrial chains, potential industries and other aspects.
Post time: Oct-17-2022
