author：Rittal cabinet, rittal cooling
key word：Rittal cabinet, rittal cooling, rittal busbar, rittal fan, rittal electric cabinet
When calculating the rated current, if the temperature is between the over-temperature limit of the Flat-PLS bus system, the trimming factor diagram can be used. If there is maximum ambient temperature and maximum allowable temperature of bus
key word：Rittal cabinet, rittal cooling, rittal busbar, rittal fan, rittal electric cabinet
When calculating the rated current, if the temperature is between the over-temperature limit of the Flat-PLS bus system, the trimming factor diagram can be used. If there is maximum ambient temperature and maximum allowable temperature of bus
The correction factor k2 can be found through the correction factor diagram. The new rated current can be calculated from the rated current when the trimming factor k2 and 30K exceed the temperature limit.
give an example:
Flat-PLS100 bus system
With 4x100x10mm
IN30 at IP2X=2320A
Ambient temperature=35 ° C
Bus temperature=85 ° C
According to the figure, the trimming factor k2=1.29
The new rated current under this condition is:
IN=IN30·k2
=2320A·1.29
=2992A
Test basis:
VDE0660 Part 500/IEC60439-1
Detection performed:
According to IEC60439-1, the size of the support spacing (l) and the intermediate spacing (a) must be within the given minimum/maximum limit.
Using the coefficient obtained from l/a, the allowable short-circuit impulse current Ip can be determined with the application of a to d curve. Attention must be paid to the specified installation method.
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Rittal cabinet, rittal cooling, rittal busbar, rittal fan, rittal electric cabinet
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Rittal cabinet, rittal cooling, rittal busbar, rittal fan, rittal electric cabinet
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