Square D 9999SC2 Molded Case Circuit Breaker Assembly

The Square D 9999SC2 is a hand/off/auto selector switch kit (Type S) designed for use with NEMA motor starters and contactors in a NEMA 1 enclosure, forming part of the Square D 9999 selector switch family. It provides three-position control—Hand, Off, Auto—for manual operation and automatic sequencing of motor circuits in industrial control panels. This kit is designed to work with Square D Type S motor starters/contactors and is compatible with enclosures and assemblies that accommodate the 9999 series, making installation straightforward in standard panelwork. Available through Schneider Electric’s Square D line and from major distributors such as Digi‑Key, Mouser, and Santa Clara Systems.