AC contactors believe that power operators are well aware that almost any control circuit can not be separated from CJX2 AC contactor, CJX2 AC contactor is a kind of automatic control electrical appliance used to connect or block the main circuit and control circuit. Now let's talk about the basic wiring skills of contactor.

Wiring skills

1. 1, 3 and 5 are connected to three-phase power supply (main circuit part);

2. 2, 4, 6 connected to three-phase motor;

3、A1、A2 ：

It is the coil of the contactor, which is connected to the control circuit. By controlling the coil of the contactor (A1, A2), it can control the motor of the circuit part (small control, large control).

4. 13 and 14 indicate the auxiliary contact of the contactor, no indicates that it is normally open, that is, 13 and 14 are open when the contactor is not powered on, and 13 and 14 are closed when the contactor is powered on. The control circuit is used for self-locking (parallel connection on the start button) to achieve the purpose of continuous work.

5. The main contacts of the three-phase contactors T1, T2 and L3 are respectively connected to the three main power supply terminals.

6. Control circuit: lead out a wire from L1 to connect the stop button (stop buton is normally closed, start button is normally open, you should know this!) Connect one end of the start button and one end of the auxiliary contact of the contactor from the stop button, and then connect the other end of the auxiliary contact from the other end of the start button (this part is also self-locking). The wire from this end is connected to coil A1, and the wire from coil A2 is connected to L2 or L3.