Overcurrent Protection, Part 2

Circuits experience overcurrent due to overload, short circuits, or fault current. What are these, and how do they differ?

An overload is a relatively small amount of excess current resulting from too much load. It might help to explain it with an analogy. If you normally carry a 50lb backpack and someone sticks an 8lb rock in it, you’ve got an overload.

A fault condition, by contrast, produces large amounts of excess current. Instead of a heavier backpack, someone hits

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