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What is the replacement for Merlin Gerin breaker type CJ400N or NSJ400N?

Need to replace either the CJ400N o NSJ400N breaker.

Product Line:
Circuit Breakers

Obsolete CJ and NSJ circuit breakers

Both the CJ400N and the NSJ400N are obsolete along with any of their accessories and have been replaced by the PowerPact L frame breaker.  
Converting from the CJ400N to the PowerPact L will involve changes in the mounting, etc. It is not a one for one swap.  
Converting from the NSJ400N to the PowerPact L all of the dimensions are the same and many of the accessories are the same as well.  
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