The AC contactor uses the main contact to open and close the circuit and the auxiliary contact to execute the control command.

主接点一般只有常开接点，而辅助接点常有两对具有常开和常闭功能的接点，小型的接触器也经常作为<中间继电器配合主电路使用。

The main contact generally has only normally open contact, while the auxiliary contact often has two pairs of contacts with normally open and normally closed functions. Small contactors are often used as intermediate relays to cooperate with the main circuit.

交流接触器的接点，由银钨合金制成，具有良好的导电性和耐高温烧蚀性。

The contact of AC contactor is made of silver tungsten alloy, which has good conductivity and high temperature ablation resistance.

交流接触器的动作动力来源于交流电磁铁，电磁铁由两个“山”字形的幼硅钢片叠成，其中一个固定，在上面套上线圈，工作电压有多种供选择。为了 使磁力稳定，铁芯的吸合面，加上短路环。交流接触器在失电后，依靠弹簧复位。

The action power of the AC contactor comes from the AC electromagnet. The electromagnet is stacked by two "mountain" shaped young silicon steel sheets, one of which is fixed and covered with a coil. There are a variety of working voltages for selection. In order to stabilize the magnetic force, a short-circuit ring is added to the suction surface of the iron core. After the AC contactor loses power, it returns by spring.

另一半是活动铁芯，构造和固定铁芯一样，用以带动主接点和辅助接点的开短。

The other half is a movable iron core, which has the same structure as the fixed iron core to drive the opening and shortening of the main contact and auxiliary contact.

安培以上的接触器加有灭弧罩，利用断开电路时产生的电磁力，快速拉断电弧，以保护接点。

Contactors above ampere are equipped with arc extinguishing cover to quickly pull off the arc by using the electromagnetic force generated when disconnecting the circuit to protect the contact.

交流接触器制作为一个整体，外形和性能也在不断提高，但是功能始终不变。无论技术的发展到什么程度，普通的交流接触器还是有其重要的地位。

The AC contactor is made as a whole, and its shape and performance are also improving, but its function remains unchanged. No matter what degree of technology development, ordinary AC contactor still has its important position.

交流接触器利用主接点来开闭电路，用辅助接点来执行控制指令。

The AC contactor uses the main contact to open and close the circuit and the auxiliary contact to execute the control command.

主接点一般只有常开接点，而辅助接点常有两对具有常开和常闭功能的接点，小型的接触器也经常作为中间继电器配合主电路使用。

The main contact generally has only normally open contact, while the auxiliary contact often has two pairs of contacts with normally open and normally closed functions. Small contactors are often used as intermediate relays to cooperate with the main circuit.

交流接触器的接点，由银钨合金制成，具有良好的导电性和耐高温烧蚀性。

The contact of AC contactor is made of silver tungsten alloy, which has good conductivity and high temperature ablation resistance.

交流接触器的动作动力来源于交流电磁铁，电磁铁由两个“山”字形的幼硅钢片叠成，其中一个固定，在上面套上线圈，工作电压有多种供选择。为了使磁力稳定，铁芯的吸合面，加上短路环。交流接触器在失电后，依靠弹簧复位。

The action power of the AC contactor comes from the AC electromagnet. The electromagnet is stacked by two "mountain" shaped young silicon steel sheets, one of which is fixed and covered with a coil. There are a variety of working voltages for selection. In order to stabilize the magnetic force, a short-circuit ring is added to the suction surface of the iron core. After the AC contactor loses power, it returns by spring.

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