electrical contactor CJ20-400A ac contactor magnetic contactor price contactors

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CJ20-400A AC contactors

Product Details
Brand Name	Shaman	Item No.	CJ20-400A
Color	gray&green	MOQ	100 pcs
Packing	2 pcs in one carton based on the items of products.
Important Information
Send sample	Yes
Delivery time	Within 30 days.
Payment terms	T/T 30% deposit, the balance before the shipment.

Introduction:

CJ20 series AC contactors are suitable for frequency 50Hz,rated voltage up to 660V,rated current up to 630A,It is mainly used for making or breaking electric circuits at a long distance & for frequent starting & stopping, controlling AC motors.

It is used in combination with thermal relay to compose a magnetic motor starter.

Techinical Specification:

Dimension:

Outline and Mounting Dimension:

electrical contactor CJ20-400A ac contactor magnetic contactor price contactors

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Q:What is the main structure of the contactor?: AC contactor using the main contact to open and close the circuit, with auxiliary contacts to turn on the control loop

Q:Similar terms for contactors and relays: Therefore, as the first floor of a friend said, large capacity of the contactor are generally equipped with an arc cover (because the high current disconnect will produce arc, do not use arc extinguishing, head).

Q:What is the power contactor: AC contactor using the main contact to open and close the circuit, with auxiliary contacts to control the implementation of instructions.

Q:How many AC contactors are there?: When the coil is energized, the static core produces electromagnetic attraction, and the moving core is sucked.

Q:Three-phase AC contactor has several terminals that have a role: Output and input are corresponding, it is easy to see. If you want to add self-locking, then you also need to output from the terminal to a terminal connected to the control point above

Q:How to choose the contactor: rated current multiplier refers to the motor starting current and rated current ratio, the general motor starting current is 5-7 times the rated current (RMS), converted to the peak, then the maximum to 12 times

Q:What is the difference between the auxiliary system 01 and 10 of the AC contactor?: normally open contact is the contactor coil without electricity, Static contact is separate, non-conductive, generally used NC said, normal close

Q:Contactor frequent pull is how the matter: contactor armature surface is dirty, need to use a soft cloth to clean up.

Q:What parts of the contactor: No matter what extent the development of technology, ordinary AC contactor still has its important position.

Q:What is the energy saving function of traditional contactors?: only the electronic module 0.8mA-1.5mA operating current, which can maximize the savings Electricity, energy-saving rate of up to 99.8% or more

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