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

直流接觸器的的輔助觸點一般都含有開與關常閉點，接觸點數能夠依據一定挑選一開與關一常閉，或是二開與關二常閉，挑選輔助要選擇專業生產廠或是品牌的商品，那樣品質有確保。

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.

鎖緊回路是電力工程操縱中不可或缺也是運用普遍的基本上電路

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

具體運用中：鎖緊電路用的是接觸器的延時繼電器，和運行按鍵串聯。

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

接觸器互鎖電路也是運用非常普遍的基本上電路。具體運用中：接觸器的互鎖電路中，應用的是接觸器的常閉點，和互鎖的接觸器電磁線圈串連。

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.

開展電路的數據信號傳送。

Carry out data signal transmission of the circuit.

一般狀況下能夠根據接觸器的輔助開與關點或是常閉點開展開關量的數據信號傳送。

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.

直流接觸器的驅動力來自磁感應系統軟件，由電磁線圈及變壓器鐵芯組成，電磁線圈的材料及線圈匝數立即危害變壓器鐵芯的驅動力，變壓器鐵芯的優劣立即危害直流接觸器的姿勢。一般狀況下，大家用接觸器的開與關點做為電機運作數據信號姿勢標示，常閉點做為電機終止數據信號標示。

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.

直流接觸器的關鍵預制構件：關鍵由好多個一部分構成磁感應系統軟件、接觸點系統軟件、磁吹系統軟件及輔助一部分構成。接觸器的適用范圍便是用以電動式機器設備的電路操縱和電熱器材的操縱及其電容器組的操縱等!它也是關鍵底壓操縱家用電器中的主打產品之一，因此廣泛運用在電力工程傳動裝置。

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.