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Contactor is divided into AC contactor (voltage AC) and DC contactor (voltage DC), which is used in power, distribution and electric field. The contactor is used to control the main circuit on and off through the control coil. CHINT contactor has a complete range of types, including air type, vacuum type, module type, capacitance type, etc. 

What are the changes of AC contactor?
There are 3-pole, 4-pole, coil has AC, DC, can also add mechanical lock to make reversible interlocking. Each country has different Hz, so there are 50 Hz or 60 Hz. Small contactor can also be used as relay.
Where is the vacuum contactor commonly used?
The contact of the vacuum contactor breaks in the vacuum gun and will not produce sparks, so it is suitable for flammable and explosive occasions, such as coal mine, petrochemical, natural gas and other industries.
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