Q:How to connect the DC contactor to the circuit?

Why use it? Because 1, some switches are not only used a switch, such as the motor star - angle start once there are several switches at the same time action

Q:What is the difference between the contactor and the relay?

it is usually off the circuit current is usually small, that is generally used in the control circuit (with the "main circuit" contrast)

Q:How to measure the contactor is good or bad

Such as one of the work, the other does not work can be roughly determined to contact bad.

Q:What is the difference between the auxiliary system 01 and 10 of the AC contactor?

The so-called normally open contact is the contactor coil without electricity in the case of moving, static contact is separate, non-conductive, generally used NO said, normal open

Q:Contactor frequent pull is how the matter

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

Q:What parts of the contactor

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

Q:Current Status of Electrical Performance Testing Technology for Contactors

The self-developed relay electrical life computer detection and control device in the relay electrical life test start, middle, the end of three different periods of time to capture the over-voltage signal.

Q:Traditional communication contactor long life and long reliability?

Compared with the traditional contactor, permanent magnet AC contactor in closing, in addition to the same electromagnetic force, but also has the role of permanent magnetic force,

Q:Contactor accessories have what roles?

arc extinguishing device, the general capacity of the larger AC contactor are equipped with arc extinguishing device, in order to quickly cut off the arc, from burning the main contact;

Q:Use Star Triangle to start contactor's order and process method

Press the stop button SB2, the coil KM is out of power, the main contact and the self-locking contact are disconnected, the motor stops.