When choosing a fuse, you must consider several elements
Time / current characteristics that fuse characteristics, points are fast break and slow off two models.
(UL248-1 & 14), to the European Union, Australia, Japan, Korea, Singapore, Malaysia, Brazil and other 51 CB system of the member countries of the product, the use of European class fuse (IEC60127 -1/2/3, etc.).
Which fuse to use the fuse, mainly to see the finished product to export to which area, and then select the corresponding safety fuse on the line.
The size of the fuse used depends on the circuit space and the way the fuse is installed
Which model depends on the protection of the fuse depends on the role of the circuit, if required to withstand the impact of a larger pulse current, overcurrent can play a protective role, this situation should choose slow-type fuse The
