2014年9月17日星期三

The classification of ac contactor purposes


Contactor is a kind of automation control of electrical appliances.Contactor is mainly used for frequent connected or mini electric motor diplomatic relations,dc,has a large capacity of control,remote operation,relay can realize timing operation and interlock control,all kinds of quantitative control and the pressure loss and under-voltage electric motors 12 volt protection,widely used in automatic control circuit,the main control object is motor,can also be used to control other electric power load,such as electric heaters,lighting,electric welder,capacitor Banks,etc.Contactor can be divided by accused of current type ac contactor and dc contactor.Here introduces the commonly used ac contactor.Communication ac electric
motor can be divided into the electromagnetic contactor and vacuum type two kinds.

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