Rad welcome to the forum, glad to have you posting.
I do want to make it clear what is allowed for breaker ratings.
400 % is the absolute maximum for FLAs of 100 amps or less and that is only allowed if the motor will not start.
In general standard breakers are allowed to be 150% to 250% of FLA maximum.
Exception No. 2: Where the rating specified in Table 430.52, as modified by Exception No. 1, is not sufficient for the starting current of the motor:
(c)The rating of an inverse time circuit breaker shall be permitted to be increased but shall in no case exceed 400 percent for full-load currents of 100 amperes or less or 300 percent for full-load currents greater than 100 amperes.
[This message has been edited by iwire (edited 05-01-2004).]