作为电路系统电气连接的基础核心元件，连接器起着连接或断开电路的重要作用，因此连接器的可靠性不可忽视，连接器的电气性能是保证电路连接可靠的重要要素，在选择连接器时必须根据使用环境考虑电气参数，正确选择和使用连接器。
连接器的电气参数包括额定电压、额定电流、接触电阻、耐压、绝缘电阻等，那么其中连接器的额定电压如何理解呢？额定电压又称为工作电压，它主要取决于连接器所使用的绝缘材料，接触对之间的间距大小。某些元件或装置在低于其额定电压时，可能不能完成其应有的功能。连接器的额定电压事实上应理解为生产厂家推荐的工作电压，厂家会在产品手册或者企业标准中规定连接器所能承受的 工作电压即额定电压，一般要求实际工作时施加在连接器上的电压低于连接器的额定电压，星坤科技XKB建议根据电连接器的耐压（抗电强度）指标以及使用环境、安全等级要求来合理选用额定电压，如果耐压指标相同，使用的环境不同，对工作电压的要求也应不同。
连接器的有些应用领域电器系统中的电压及电流较高，高电压和大电流环境下对于连接器性能的要求也更为苛刻，连接器的耐压能力、载流能力也必须再度拔高才能保证安全可靠。
How to understand the rated voltage of the connector?
As the basic core component of the electrical connection of the circuit system, the connector plays an important role in connecting or disconnecting the circuit,therefore, the reliability of the connector cannot be ignored.The electrical performance of the connector is an important factor to ensure reliable circuit connection,when choosing a connector, we must consider the electrical parameters according to the usage environment and select and use the connector correctly.
The electrical parameters of the connector include rated voltage, rated current, contact resistance, voltage resistance, insulation resistance, etc,so what does the rated voltage mean?Rated voltage, also known as working voltage,it mainly depend on the insulating materials used in the connector and
the space between contact pairs.Some components or devices may not be able to perform their intended function under their rated voltage,the rated voltage of the connector in fact should be understood as the highest working voltage recommended by the manufacturer,the highest working voltage that a connector can withstand will be specified by the manufacturer in the product manual or in the enterprise standard,it is generally required that the voltage applied to the connector during actual operation is lower than the rated voltage of the connector.
XKB company suggests selecting the rated voltage reasonably according to the voltage resistance (electrical strength) index of the electrical connector and the requirements of using environment and safety grade,if the pressure tolerance index is the same and the environment used is different, the requirements on the maximum working voltage should also be different.
Some applications of connectors are higher in voltage and current in electrical systems,the requirements for the connector are stricter and stricter under the environment of high voltage and large current.
