Are the Power Contacts on the 8903S Lighting Contactors Convertible from normally open to normally closed?

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Issue:
Needs normally close poles using the 8903 Type S lighting contactor

Product Line:
NEMA and Definite Purpose Contactors and Starters

Environment:
Type S lighting contactors

Resolution:
No they are not convertible. The power poles are normally open (NO) and cannot be converted to normally close (NC).