What is the difference between selector switch 9001KS and 9999SC8?

Issue:
Identify the differences between 9001KS and 9999SC8

Product Line:
NEMA Contactors and Starters

Environment:
Cover-Mounted Control Units

Resolution:
9999SC8 is a kit consists of the 9001KS operator, contact block, wiring harness, legend plate, and installation instructions for NEMA contactors and starters.

Released for: Schneider Electric USA