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What is the replacement for the IL and LI I-Line circuit breaker like IL36400?

Issue:
What is the replacement for the IL and LI I-Line circuit breaker like IL36400?
 
Product Line:
Square D Circuit, High Interrupt Rating
 
Cause:
Need to replace high interrupt rated breaker in an I-Line panel.
 
Resolution:
The IL and LI breaker are both obsolete. The interrupt rating for the breaker is 200 kA at 240 Vac and 480 Vac and 100 kA at 600Vac.
 
The replacement is the Powerpact L Frame. For example the IL36400, a 400 A breaker, is replaced by LRA36400U31X.
 
See page 9-29 in Section 9 of Digest 176.
 
Notes:
The legacy breakers (IL and LI) were thermal magnetic, and Powerpact L frame is electronic trip only.




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