What type of fuses should be avoided for sensitive equipment?

Fast blow fuses are designed to provide immediate protection by blowing as soon as the current exceeds a certain threshold. This characteristic makes them highly responsive, which can be a disadvantage for sensitive equipment that may experience momentary surges or inrush currents during startup. Such surges are often harmless and could potentially trigger a fast blow fuse, leading to unnecessary interruptions in operation.

In contrast, time delay fuses are specifically designed to tolerate these brief surges, allowing the sensitive equipment to operate without interruption. High capacity fuses and resettable fuses also serve distinct functions, but they do not provide the immediate protection needed for sensitive components in the same way that a time delay fuse would. Therefore, for sensitive equipment that encounters varying current demands, fast blow fuses should indeed be avoided to ensure proper functionality and minimize the risk of damaging interruptions.