RDT16 series powder filled cartridge knife type contact fuse is suitable for the industrial electric distribution device of AC 50Hz, rated voltage up to 500/690V, rated current up to 1250A, as the use of the over-load and short-circuit protection for the circuit. Confirms to: GB13539.1-2008/IEC60269-1:2006; GB/T13539.2-2008/IEC 60269-2:2006
Normal operating condition and installation condition
3.1 Ambient temperature: -5C~+40C, average value within 24h does not exceed +35 ÿ, and the average value within one year should be less than this value.
3.2 Altitude of installation place does not exceed 2000m
3.3 Atmosphere condition
The air is clean, and its relative humidity does not exceed 50% when the ambient temperature is at 40 C. It is allowed relatively high humidity at the relatively low temperature, for example, the relative humidity can reach 90% when 20ÿ, and it should take consideration of the condensation produced on the surface of product that is due to the temperature variation.
3.4 Voltage
When the rated voltage is 500V, the maximum value of system voltage does not exceed 110% of fuse's rated voltage; When the rated voltage is 690V, the maximum value of system
does not exceed 105% of fuse's rated voltage.
Note: the fuse link is fusing in a significantly lower than the rated voltage, the fuse indicator
or fuse impactor may not act.
3.5 Installation category: III
3.6 Grade of pollution: not less than 3
3.7 Installation position
This series of fuse can be vertically, horizontally or obliquely installed at those operation occasions
of without obvious shake, impact vibration.