Schneider Electric Square D 9999SX7 C01 Contactor

Schneider Electric Square D 9999SX7 C01 Contactor is a field-convertible auxiliary contact kit that attaches to compatible Square D contactors to add a single normally closed (NC) contact for signaling and interlock applications. The kit provides one NC contact rated up to 10 A at 600 V AC, enabling signaling, interlocking, and sequencing functions in control circuits without altering the main switching action of the primary contactor. It features threaded-mount hardware for secure installation on SA-SJ NEMA 00–7 size contactors and starters in the Square D 9999SX7 family. Typical uses include PLC signaling, remote interlocks, status indication, and sequencing in motor-control and automation systems such as conveyors, pumps, fans, and HVAC equipment. Designed as a supplementary accessory, it expands control logic capacity for existing installations without replacing the main contactor, and is specifically associated with the Square D 9999SX7 lineup for use with SA-SJ rated devices.