There is no any tangible proof that
state either of them fits all safety and protection requirements
under all circumstances. The selection totally depend on the type of
application. For eg. In most MV overhead applications where the MV/LV
X-formers are installed in the poles it feasible to install fuses
where can ease the replacement and can protect better in high
transient currents. If the applications types are tolerant to high
transient voltages and currents a circuit breaker shall be a
reasonable choice.
Regards
jj