1, in the design process of the connector, it is through the thermal design of high quality din 41612 type g connectors to meet the rated current requirements, because when the contact pair has a current flow, due to the presence of conductor resistance and contact resistance, the contact pair will heat.

2, when its heating exceeds a certain limit, it will destroy the insulation of high quality din 41612 type g connectors and form contact softening of the surface coating, resulting in failure.

3, to limit the rated current, in fact, to limit the temperature rise inside the connector does not exceed the specified value of the design.

4, in the selection of issues to pay attention to is: for multi-core high quality din 41612 type g connectors, the rated current must be derated.

5, this should be more attention in the case of high current, such as φ3.5mm contact pair, the general provisions of its rated current is 50A, but in the 5 core to derate 33% of the use, that is, the rated current per core is only 38A, the more the number of cores, the greater the derating range.

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