> It's a scale problem; fuses can be set up protect components or machines in a car or factory context;

Induction motors use overload relays to protect the motor, fuses are strictly for overcurrent protection to stop the wire from catching fire. A VFD will have a fused switch or circuit breaker on the line side for overcurrent protection and a set of overload relays after the contactor to protect the motor itself.

Switchgear uses ground fault protection relays to protect the equipment, not fuses (or humans for that matter, GFP relays are set around 30mA IIRC)

Some motors also have phase loss protection relays that will power down the motor if a utility phase is lost.

A car is the same, fuses are to protect the wiring and prevent fires. Fuses do not act quickly enough to protect equipment, even fast-acting ones.

Relays act fast enough and deterministically enough to protect equipment, fuses aren’t fast or accurate enough to do so.