ABB A,AF,AL系列接触器；AF*V AC/DC
(1)结构：
(1) structure:
接触器主要由电磁系统、触点系统、灭弧系统及其它部分组成。
The contactor is mainly composed of the electromagnetic system, the contact system, the arc extinguishing system and other parts.
电磁系统：电磁系统包括电磁线圈和铁心，是接触器的重要组成部分，依靠它带动触点的闭合与断开。
Electromagnetic system: electromagnetic system including electromagnetic coil and iron core, is an important component of the contactor, relying on it to drive the close and disconnect of the contact.
触点系统：触点是接触器的执行部分，包括主触点和辅助触点。主触点的作用是接通和分断主回路，控制较大的电流，而辅助触点是在控制回路中，以满足各种控制方式的要求。
Contact system: the contact is the utive part of the contactor, including the main contact and the auxiliary contact. The main contact function is to connect and break the main circuit, control the larger current, and the auxiliary contacts are in the control loop to meet the requirements of various control modes.
灭弧系统：灭弧装置用来保证触点断开电路时，产生的电弧可靠的熄灭，减少电弧对触点的损伤。为了迅速熄灭断开时的电弧，通常接触器都装有灭弧装置，一般采用半封式纵缝陶土灭弧罩，并配有强磁吹弧回路。
Arc extinguishing system: when the arc extinguishing device is used to ensure the contact disconnect circuit, the arc will be extinguished reliably, and the damage of the arc to the contact is reduced. In order to quickly extinguish the interrupting arc, the contactors are usually equipped with arc extinguishing devices. The semi sealed longitudinal joint clay clay arc extinguishing hood is usually equipped with a strong magnetic blow arc circuit.
其它部分：有绝缘外壳、弹簧、短路环、传动机构等。
Other parts: insulation shell, spring, short circuit ring, transmission mechanism and so on.
