Drop-out fuse for the environment

Drop-out fuse for ambient air without conductive dust, corrosive gases and flammable, explosive and other dangerous electric meter, annual temperature change in ± 40 ℃ or less than the outdoor venues. Their choice is in accordance with the rated voltage and rated current of two parameters, that is, the rated electric transformer the fuse must be protected devices (line) of the rated voltage match. Fuse with the rated current should be electric transformer or equal to the rated current of the melt. The rated current of the melt of the rated load current optionally 1.5 to 2 times. In addition, the system should be protected three-phase short-circuit capacity of the selected fuse checked.