What is one key difference between short-circuit protection and overload protection?

Short-circuit protection is designed specifically to prevent damage caused by sudden increases in current due to short circuits, which can occur when there is a fault in the electrical circuit, such as a direct connection between conductors that drastically reduces resistance. This type of protection quickly detects these faults to interrupt the flow of electricity, thereby preventing the potential damage that can arise from excessive current flow.

The correct choice emphasizes that short-circuit protection plays a crucial role in safeguarding electrical systems by cutting off current spikes that result from different types of faults, ensuring that the equipment and infrastructure remain safe from undue stress and potential failure.

In contrast, overload protection deals with extended excessive current conditions, often caused by increased load beyond what a motor can handle. While both protections are essential for motor safety, the mechanisms and contexts in which they function differ significantly.