How to select the correct busbar size for installing Fupact ISFL in Prisma P switchboards?

The main parameter for the busbar design is the permissible current. This parameter depends on the ambient temperature and IP degree of the enclosure.
For installing Fupact ISFL devices in Prisma P enclosures the Linergy BS busbars may be used. In the attached file the permissible current of the recommended sizes are stated.

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