Q:What are the types of AC contactors?

arc extinguishing system: arc extinguishing device used to ensure that the contact disconnect the circuit, the arc generated by the reliable off to reduce the damage to the contact of the arc.

Q:With long life, long reliability is the advantages of traditional communication contactor

closing speed faster than the traditional AC contactor, the detection, permanent magnet exchange Contactor closing time is generally less than 20ms, while the traditional contactor closing speed is generally about 60ms

Q:What about the number of AC contactors?

so that the main contact is disconnected and the auxiliary normally closed contact which is mechanically connected with the main contact is closed

Q:The key structure of the contactor

Semiconductor contactor: The semiconductor contactor is a contactor that performs current operation by changing the conduction state and the open state of the circuit circuit.

Q:The main structure of the contactor

The contactor can operate at high frequencies, up to 1200 times per hour when the power is turned on and off.

Q:What are the principles of selection of contactors?

Select the rated voltage of the main contact of the contactor The rated voltage of the main contact of the contactor shall be greater than or equal to the rated voltage of the control circuit.

Q:Contactor frequent pull is how the matter

the coil terminal bad contact, need to tighten the terminal screws to make good contact.

Q:Three-phase AC contactors have several useful clients?

. And note whether the contact point is normally closed or normally open. If there is self-locking control, according to the principle of the line on it.

Q:What is the noise-free function of traditional contactors?

The traditional AC contactor is closed by the coil power to make the silicon steel sheet to produce electromagnetic force

Q:What is the effect of the contactor coil parallel capacitor?

Capacitors at both ends of the voltage can not be special changes, and the capacitor can delay and reduce the coil's reverse electromotive force, Reduce interference, extend the life of contacts.