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weckmannu
2 years ago

The task is badly represented.

I read from the diagram for 3 A 15 seconds, so solution 5.

I don’t see that raredevil. I understand the diagram.

In my opinion, it shows the time over the power. You can’t calculate with the nominal value.

The different curves are not explained. ☹️

jort93
2 years ago

Nominal current is 0.5A, 3A is 6 times as much, so look at 6 in the graphics, which is the highest possible time.