What is the maximum amperage breaker available that can be installed into the largest size I-Line panel?

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Issue:
Largest amp size breaker

Product Line:
Panelboards

Environment:
I-Line

Cause:
Maximum rating

Resolution:
The highest bus rating for I-line panels is 1200A. Because of this, the largest breaker available to plug on to the I-Line bus is also 1200A. However, a breaker this large can only be used on the HCR-U type panelboards.