contactor

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Wenzhou
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10000pcs pc/month

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Application
AC contactor(hereafter refer to ac contactor)is mainly used in power system with AC 50Hz(or 60Hz), the rated working voltage up to 660V, under the application category of AC-3, when the rated working voltage 380V, the rated operating current to 300A electrical, for the long-distance range making and breaking the electric circuit, and combines the electormagnetism starter with the suitable thermal overload relay or the electronic protector to protect against the possible overload electric circuit during operation(running).


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Q:What does the contactor lock mean?
t is through the start button (jog) after the start of the contactor coil to continue to have electricity, resulting in maintaining the contact path state
Q:Similar terms for contactors and relays
The main function of the relay is the signal detection, transmission, transformation or processing
Q:What are the classification of contactors?
DC current compared with the AC current, there is no periodic current value of the zero-crossing point, so the traditional contactor breaking circuit, the contact between the arc is more intense
Q:Basic classification of AC contactors
The contactor is mainly composed of electromagnetic system, contact system, arc extinguishing system and other parts.
Q:Determine whether the AC contactor can cut off the short circuit current?
When the coil is energized, the static core produces electromagnetic attraction, and the moving core is sucked
Q:Judge the contactor is good or bad
listen: A, listen to whether it has a very loud squeaky sound, if possible may be (1) the power supply voltage is low
Q:What is the use of AC contactors?
General three-phase contactor a total of 8 points, three input, three output, there are two control points. Output and input are corresponding, it is easy to see
Q:What is the main structure of the contactor?
In order to stabilize the magnetic force, the suction surface of the core is short-circuited. The AC contactor relies on a spring return after power failure.
Q:Contactor accessories have what roles?
insulation shell and accessories, all kinds of springs, transmission, short circuit, terminal and so on
Q:The main classification of contactors
The product is mature: Model: CJ20J, NSFC1, NSFC2, NSFC3, NSFC4 , NSFC5, NSFC12, NSFC19, CJ40J, NSFMR.

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