How to calculate inrush current on 9070 transformer?

Issue:

Inrush current for 9070 transformer

Product Line:

Low Voltage Transformers

Answer:

Refer to the fuse sizing on the attached document. The fuses used for 9070 Products must be SloBlo or Time Delay fuse types to deal with the inrush, so exact inrush values and calculations are not necessary. The fuse charts already determine the appropriate fuse sizes to use for the 9070s. Using SloBlo or Time Delay fuses handles the inrush, which typically lasts for only 6 cycles or less.

Released for: Schneider Electric USA