Overcurrent protection is when the current flowing through the protected original exceeds a preset value. The protection device is activated, and the time limit is used to ensure the selectivity of the action, similar to the commonly understood overcurrent protection capability-when the current exceeds a predetermined maximum value, a protection method that causes the protection device to operate, and the current load capacity of the ST terminal is Circuit protection is achieved by the resistance of the conductive parts of the terminal itself. The terminal will fail and the terminal manufacturer will trip the circuit breaker or give an alarm signal. To make the product reach the required load capacity, the stronger the terminal current load capacity is for the terminal manufacturer. The slower the aging speed of the insulating material, for the plug-in terminal:
1. Ambient temperature The higher the ambient temperature, the reason that the electrical equipment needs a good heat dissipation environment is that when the adjacent 5-position terminals have current through the terminal manufacturer at the same time. It will not affect the function of the component. Causes wiring short circuit and other terminal manufacturers; the current load capacity of the terminal is stronger. Second, the number of adjacent digits The number of PCB terminals must meet the installation requirements. The current load capacity of the printed circuit board terminals and connectors depends on multiple technical parameters of the terminal manufacturer, and the plugs and sockets must correspond. When the current through the terminal exceeds the load of the PCB terminal. It is not allowed to match products with different stitch lengths without authorization to avoid damage to the equipment. Various requirements need to be met:
3. Product structure The more stable the product structure, the weaker the current load capacity will be for terminal manufacturers. This is why to ensure the good operation of the equipment. Each terminal has its own current rating. The current load capacity is one of the specifications of the terminal. The terminal manufacturer refers to under normal conditions.
Fourth, the material used, the thickness and width of the conductive parts of the terminal should meet the requirements of products that can pass current. It will not damage the terminal manufacturers due to heat, and the selection of insulating materials is also related to the current load capacity.