There is the possibility for the switch handle to be placed in the OFF position when the switch is still in an ON (closed) position. This may result in the potential for PERSONAL INJURY OR PROPERTY DAMAGE.
This Notice is applicable ONLY to 30 Ampere and 60 Ampere General Duty Safety Switch Catalog Numbers listed below manufactured between September 11, 2006 and November 4, 2006.

D211NRB D211NRBBP D211NRBCP D221NRB
D221NRBCP D321NRB D321NRBCP DU221RB
DU222RB

DU321RB DU322RB

http://www.squared.com/us/squared/corporate_info.nsf/unid/D80CF820F4747CFA8525723D004E60DA/$file/GDSS_Recall.htm[url]

Be sure & check the Square D web-site as there is also a recall for some of their arc fault breakers & there have also been counterfeit Square D breakers found to be on the market.