The application of DC contactor is very common, which is the key to the use of industrial electrical automatic control system.

直流接触器的的辅助触点一般都含有开与关常闭点，接触点数能够依据一定挑选一开与关一常闭，或是二开与关二常闭，挑选輔助要选择生产厂或是的商品，那样品质有确保。

The auxiliary contacts of DC contactors generally contain on and off normally closed points. The number of contact points can be selected according to certain conditions, i.e. one on and one off normally closed, or two on and two off normally closed. The selection of auxiliary contacts should select professional manufacturers or brand goods, so as to ensure the quality.

锁紧回路是电力工程操纵中不可或缺也是运用普遍的基本上电路

Locking circuit is an indispensable and widely used basic circuit in power engineering operation

具体运用中：锁紧电路用的是接触器的延时继电器，和运行按键串联。

Specific application: the locking circuit uses the time-delay relay of the contactor, which is connected in series with the operation key.

接触器互锁电路也是运用非常普遍的基本上电路。具体运用中：接触器的互锁电路中，应用的是接触器的常闭点，和互锁的接触器电磁线圈串连。

Contactor interlock circuit is also a very common basic circuit. Specific application: in the interlock circuit of the contactor, the normally closed point of the contactor is applied, which is connected in series with the interlocked contactor solenoid coil.

开展电路的数据信号传送。

Carry out data signal transmission of the circuit.

一般状况下能够根据接触器的輔助开与关点或是常闭点开展开关量的数据信号传送。

In general, the data signal transmission of switching value can be carried out according to the auxiliary opening and closing points or normally closed points of the contactor.

直流接触器的驱动力来自磁感应系统软件，由电磁线圈及变压器铁芯组成，电磁线圈的材料及线圈匝数立即危害变压器铁芯的驱动力，变压器铁芯的优劣立即危害直流接触器的姿势。一般状况下，大家用接触器的开与关点做为电机运作数据信号姿势标示，常闭点做为电机终止数据信号标示。

The driving force of DC contactor comes from the magnetic induction system software and is composed of electromagnetic coil and transformer core. The material and coil turns of electromagnetic coil immediately endanger the driving force of transformer core, and the quality of transformer core immediately endangers the posture of DC contactor. In general, the open and close points of the contactor are used as the gesture mark of the motor operation data signal, and the normally closed point is used as the motor termination data signal.

直流接触器的关键预制构件：关键由好多个一部分构成磁感应系统软件、接触点系统软件、磁吹系统软件及輔助一部分构成。接触器的适用范围便是用以电动式机器设备的电路操纵和电热器材的操纵及其电容器组的操纵等!它也是关键底压操纵家用电器中的主打产品之一，因此广泛运用在电力工程传动装置。

Key prefabricated components of DC contactor: the key consists of many parts, including magnetic induction system software, contact point system software, magnetic blowing system software and auxiliary parts. The scope of application of the contactor is used for the circuit operation of electric machinery and equipment, the operation of electric heating equipment and the operation of capacitor bank! It is also one of the main products of key bottom pressure control household appliances, so it is widely used in power engineering transmission devices.