Categorization:Product Information
When you need to use power connectors, you will certainly be on the market to choose and purchase, but you really grasp the correct choice of "posture"? Below, Huicheng Yuan connector company engineers will introduce you to how to choose a high-quality power connectors, so that you can easily avoid a variety of blind spots, do not buy again foolishly! Power connectors are widely used in a variety of circuits, and used as a connection or disconnection of the circuit. Proper selection of aviation plugs is also an important aspect of improving the reliability of power connectors. Only with the manufacturer and the user to work together to greater connector function.
Selecting the Rated Voltage of a Quality Power Connector The rated voltage, also known as the operating voltage, depends largely on the insulation used in the source connector connector and the spacing between the contact pairs. Some components or devices may not be able to perform their intended function below their rated voltage. In fact, the voltage rating of a connector is the higher operating voltage recommended by the manufacturer. In principle, the operating temperature of connectors is much lower than the rated voltage. According to the specifications, the rated voltage should be reasonably selected according to the usage environment and safety level requirements. That is to say, according to different use environment and safety requirements, the same withstand voltage indicator can use different higher working voltage. This is also in line with the objective use. Selecting the rated current of a high-quality power connector The rated current is also known as the operating current. As with voltage ratings, power connectors usually operate properly at lower than rated currents. During the design process of a power connector, the thermal current of the connector is designed to meet the rated current requirement because when there is current flowing through a contact pair, the contact pair generates heat due to conductor resistance. Contact resistance. When the heat exceeds a certain limit, it can damage the insulation of the aviation plug and soften the surface coating, leading to failure. Therefore, it is important to limit the rated current and, in effect, limit the temperature rise inside the aviation plug from exceeding the design specified value. The issue to keep in mind when selecting is that the current rating of a multi-prong power connector must be reduced. More attention should be paid to this in the case of high currents. For example, a contact pair of φ3.5mm usually has a rated current of 50A, but when it is 5 cores it should be reduced by 33%, i.e., the rated current of each core is only 38A, i.e., the number of cores. The more you deduct, the greater the reduction.
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