The biggest difference between DC fuses and AC fuses is arc extinction. AC has a zero-crossing point, so the arc is easy to extinguish. DC has no zero point, so the arc is harder to extinguish. Therefore, DC fuses need a special arc-extinguishing structure.
DC fuses are used in PV, energy storage, EV, and battery systems. AC fuses are used in household and industrial AC grids. Using the wrong type causes serious safety risks.