Roger- You blew it on this one. Look in the 2006 UL White book under "Molded Case Circuit Breaker Marking Guide" in the back of the book on p. 13. This agrees with 240.85. The lower of the two voltages on a Slant-Rated breaker can not be exceeded when measured to ground from either of the 2 phases involved.
[This message has been edited by George Little (edited 11-01-2006).]
